Area and Perimeter: Math Ready: Unit 3 Lesson 5 Measuring

Multiple Choice

Given the picture, exactly how much more area does the 80" TV have than the 55" TV? (The ratio of length to height is 16:9.)

• yes

• no

Multiple Choice

What does the 80 inches represent in an 80" TV?

• Area

• Length

• Width

• Diagonal

Multiple Choice

Find the area of an 80" TV if the ratio of length to the height is 16:9.

• The area of the TV is 2735 square inches

• The area of the TV is 2573 square inches.

• The area of the TV is 7523 square inches.

• The area of the TV is 3725 square inches.

Comparing TV Area Solutions

​Find the Area of an 80" TV if the ratio of length to height is 16:9.

Multiple Choice

Find the area of a 55" TV. The ratio of length to the height is the same (16:9).

• The area is 1392 square inches.

• The area is 1932 square inches.

• The area is 1293 square units.

• The area is 2193 square inches.

Comparing TV Area Solutions

​Find the Area of an 50" TV if the ratio of length to height is 16:9.

Comparing TV Area Solutions

​How much more area does the 80" TV have than the 55" TV?

Area of Different Quadrilaterals

Area of a Circle

​

Multiple Choice

What is the Perimeter of this Composite Figure?

• 44 cm

• 42 cm

• 35 cm

• 41 cm

Perimeter and Area Review

Area of Rectangles, Parallelograms & Squares

• Rectangles: L x W

• Parallelograms: B x H

• Remember, squares have all sides the same length!

Multiple Choice

What is the area of this composite figure?

• 104 mi

• 70 mi

• 38 mi

• 76 mi

Multiple Choice

What does perimeter mean?

• the amount of space inside a shape
• the distance around the shape
• the amount of space inside a shape divided by two
• half the distance around a shape

Difference Between Circumference & Area of a Circle

​

Multiple Choice

What is the perimeter?

• 20

• 40

• 60

• 80

Multiple Choice

What is the Area of this Composite Figure?

• 54 in

• 188 in

• 116 in

• 76 in

Multiple Choice

What is the perimeter of the rectangle? (Hint: top matches the bottom, left matches the right!)

• 14 feet

• 28 feet

• 48 feet

• 20 feet

Multiple Choice

What is the area of a square with a side that measures 15 m?

• 60 m²

• 225 m²

• 215 m²

• 230 m²

Multiple Choice

Find the perimeter of the irregular shape

• 28m

• 21m

• 30m

• 32m

Multiple Choice

What is the area of the following figure?

• 329.04 ft²

• 216 ft²

• 668.39 ft²

• 272.55 ft²

Multiple Choice

The perimeter of the shape is 31 feet. What is the length of the missing side?

• 3 feet

• 4 feet

• 5 feet

• 6 feet

Circumference of a Circle

 is the distance around a circle

Multiple Choice

Find the perimeter of the rectangle.

Remember to combine like terms!

• 16x + 20

• 8x + 10

• 80x

• 18x

Multiple Choice

Find the Perimeter

• 74 in

• 69 in

• 82 in

• 67 in

Multiple Choice

Find the area of the rectangle.

• 36 in.²

• 72 in.²

• 26 in.²

• 13 in.²

Multiple Choice

What is the formula for finding area?

• $$A\ =\ length\cdot width$$

• $$A\ =\ length\ +\ width$$
  

• $$A\ =\ length\ \cdot4$$

• $$A=\ width\ \cdot width$$ Area = Width x Width

Multiple Choice

What is the area of the composite shape?

• 40ft²
• 9ft²
• 49ft²
• 61ft²

Multiple Choice

What does area mean?

• the distance around a shape
• half the distance around a shape
• the amount of space outside a shape
• the amount of space inside a shape

Area of a circle

- is the number of square units inside the circle.

-is the measure of the space or region enclosed inside the circle

Multiple Choice

What is the area of this figure?

• 12 sq. cm

• 32 sq. cm

• 16 sq. cm

• 28 sq. cm

Multiple Choice

What is the area of the composite figure?

• 80 cm²
• 16 cm²
• 96 cm²
• 32 cm²

Multiple Choice

What is the area of a square with a length of 5 cm?

• 10 sq cm

• 25 sq cm

• 20 sq cm

• 5 sq cm

Multiple Choice

Find the area

• 430 in²

• 215 in²

• 41.5 in²

• 1.5 in²

Multiple Choice

If a rectangle has an area of 18 sq inches, what would be the 

length  $$\cdot$$   width?

• $$3\cdot3$$  

• $$3\cdot6$$  
  

• $$6\cdot6$$  
  

• $$4\cdot18$$  
  

Multiple Choice

Farmer Bob needs to build a fence to keep his chickens in the yard.  The yard is 40 feet long and 20 feet wide.  How much fence will he need?  
(THINK, is he finding the area or the perimeter?)
Draw and label the picture

• 800 square feet
• 120 feet
• 60 feet
• 600 square feet

Multiple Choice

The area of a rectangle is 25 cm². What could the length and width of the rectangle?

• 6 cm and 4 cm

• 5 cm and 5 cm

• 10 cm and 15 cm

• 5 m and 5 m

How to visualize area of a circle?

Draw a circle on graph paper and count the number of small squares within it.

Multiple Choice

Jeff drew a circle inside a square, as shown below.  Which method can Jeff use to find the area of the square not covered by the circle?

• Subtract the area of the circle from the area of the square.
• Subtract the area of the square from the area of the circle.
• Subtract 1/4 the area of the square from the area of the circle.
• Subtract 1/4 the area of the circle from the area of the square.

Area of Triangles

Multiple Choice

To find the area of a composite figure you must break the irregular figure into common shapes then find the area of each shape and 

• subtract them
• add them together
• multiply them
• divide them

What is the area of this circle?

A = 28 square units

Multiple Choice

The label for area is 

• units squared
•  units
• you do not need a label.

Multiple Choice

Find the area of the triangle! (Don't forget to divide by 2!!)

• 17 units²

• 20 units²

• 10 units²

• 16 units²

Multiple Choice

Find the area of the composite shape.

• 24 units²

• 20 units²

• 21 units²

Find the area of this circle.

Multiple Choice

What is the perimeter of the figure?

• 30 units
• 32 units
• 24 units
• 36 units

Multiple Choice

Find the area of the triangle! (Don't forget to divide by 2!!)

• 44.4 mm²

• 5.92 mm²

• 8.88 mm²

• 17.76 mm²

Multiple Choice

Find the area.

• 50 units²

• 200 units²

• 250 units²

• 300 units²

Formula to find the Area of a Circle

Multiple Choice

Which measurement is best for determining the distance walking around the edge of a park?

• area
• perimeter

Multiple Choice

Find the area of this triangle! (Don't forget to divide by 2!)

• 50 square inches

• 100 square inches

• 200 square inches

• 25 square inches

Multiple Choice

Which measurement is best to determine the coverage of fertilizer on a field?

• area
• perimeter

Multiple Choice

What is the formula for the area of a triangle?

• A=bh
• A=1/2 bh
• A=1/2 (b₁+b₂) h
• A=πr²

Area of a trapezoid

• To find the area use these three steps:

• Step 1: Add the two bases

• Step 2: Then multiply by your height

• Step 3: Divide by 2

Multiple Choice

Find the missing sides and the perimeter

• 21 miles
• 23 miles
• 20 miles
• 28 miles

Word Problem:

Gina and her family are new in the village. Upon designing their house, they decided to put circular windows on it. If a circular window has a radius of 2 meters, what is the area of the glass of the window?

Multiple Choice

What is the area of the BLUE triangle?

• 21

• 42

• 84

• 168

Multiple Choice

Find the area.

• 14 in²
• 18 in²
• 52 in²
• 28 in²

Multiple Choice

A figure that is made up of two or more simpler figures, such as triangles and quadrilaterals.

• polygon

• composite figure

• triangle

• regular polygon

Solution

Multiple Choice

Find the area of the trapezoid.

• 18 m²

• 165 m²

• 84 m²

• 22.5 m²

Multiple Choice

What do you call the number of square units inside a circle?

• volume

• diameter

• circumference

• area

Multiple Choice

Find the area.

• 108 cm sq

• 60 cm

• 432 cm sq

• 216 cm sq

Multiple Choice

What is the formula used in finding the area of a circle?

• $$A=2\pi r$$

• $$A=\pi d$$

• $$A=\pi r^2$$

Time to practice!

Let's practice finding the area of the different quadrilaterals! (Don't forget your formulas!))

Multiple Choice

The bottom surface of a circular pond with a radius of of 3.5 m will be tiled. Find the area of the surface that will be tiled.

• $$3.846m^2$$

• $$38.465m^2$$

• $$384.65m^2$$

• $$3846.5m^2$$

Multiple Choice

Find the area of this square

• 49 inches

• 49 units

• 14 units²

• 49 units²

Multiple Choice

What is the area of a circular table top if its diameter is 20 centimeters?

• $$3.14cm^2$$

• $$31.40cm^2$$

• $$314cm^2$$

• $$3140cm^2$$

Multiple Choice

What is the area of a triangle with a base of 10 cm and a height of 14 cm?

• 24 cm squared

• 12 cm squared

• 70 cm squared

• 140 cm squared

Multiple Choice

The diameter of a circle is 10 cm. How will you find the area of a circle?

• Square the diameter times 3.14

• Divide the diameter by 2 times 3.14

• Multiply the diameter by itself times 3.14

• Divide the diameter by 2 then multiply by itself and times 3.14

Multiple Choice

Find the area:

• 13 in²

• 20 in²

• 26 in²

• 40 in²

Multiple Choice

How will you find the area of a circle?

• Divide the radius by 2 then times 3.14

• Multiply the radius by itself times the value of pi

• Square 3.14 times the radius

• Square the diameter times 3.14

Multiple Choice

Find the area:

• 84 m²

• 168 m²

• 112 m²

• 56 m²

Multiple Choice

Is the red line a radius or diameter of the circle?

• Radius

• Diameter

Multiple Choice

Find the area of the triangle. (Don't forget to divide by 2!)

• 108 cm

• 540 cm

• 108 cm²

• 54 cm²

Multiple Choice

If the diameter of the circle is 20 cm., what is the radius when squared?

• $$10cm^2$$  

• $$100cm^2$$  

• $$200cm^2$$  

• $$400cm^2$$  

Multiple Choice

Find the AREA of this figure.

• 160 square feet
• 160 feet
• abcdefghijklmnopqr
  stuvwxyz
• 1600 feet

Multiple Choice

What is the radius of this circle?

• 18

• 10

• 9

• 8

Multiple Choice

If the diameter of a circle is 50 yards, the radius is _____

• 100 yards
• 25 yards
• 150 yards
• 15 yards

Multiple Choice

Areas are measured in terms of ________.

• cubic units

• degrees

• meter

• square units

Multiple Choice

Ms. Catall is using a compass to find her way out of the woods. The compass has a radius of 4 centimeters. What is the compass's area?

• 49.2 cm²

• 45.6 cm²

• 50.24 cm²

• 55.9 cm²

Multiple Choice

Shring's dining room table is round and has a radius of 4.5 feet. What is the tabletop's area?

• 63.585 ft²

• 68.345 ft²

• 64.585 ft²

• 61.345 ft²

Multiple Choice

Find the area of the circle

• 43.96

• 153.86

• 87.82

• 307.72