7-1 Find Areas of Parallelograms and Rhombi

7-1 Find Areas of Parallelograms and Rhombi

Mrs. Nickodemus

Poll

Would you rather give up pizza or tacos?

• Pizza

• Tacos

Plan for the day:

• 7-1 Find Areas of Parallelograms and Rhombi

Warm up

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These questions are timed and just some review

Multiple Choice

A triangle is an example of a three sided shape called a...

• Polygon

• Parallelogram

• Perpendicular

• Volume

Multiple Choice

_______ lines form a right angle.

• Polygon

• Parallelogram

• Perpendicular

• Volume

Multiple Choice

__________ is the number of cubic units to fill a solid figure

• Polygon

• Parallelogram

• Perpendicular

• Volume

Multiple Choice

A _______ has opposite sides that are parallel and the same length

• Polygon

• Parallelogram

• Perpendicular

• Volume

Multiple Choice

42.1 x 0.59

• 24,839
• 248.39
• 24.839
• 2.4839

Multiple Choice

0.23 x 5.4

• 1,242
• 124.2
• 12.42
• 1.242

Multiple Choice

Evaluate 2r + 1 if r = 3

• 6

• 5

• 7

• 8

Multiple Choice

Evaluate 4y if y = 3

• 7

• 12

Multiple Choice

Evaluate 2a + 4b

if a = 10 and b = 6

• 20

• 24

• 44

• 4

Multiple Choice

What is the product of these fractions in lowest terms?

• 20/50

• 10/25

• 2/5

• 9/15

Multiple Choice

• 2/15

• 2/0

• 1/2

• -1/2

Multiple Choice

Divide these fractions. Simplify!!!

9/4 ÷ 1/6

• 8 / 2

• 27 / 2

• 9 / 2

• 9 / 24

Area of a Parallelogram

A= B*H

Think - A parallelogram is just a rectangle (see the picture) with one side cut off and pasted on the other. So we use the same formula to find the area

Example 2

parallelogram

Area of a Rhombus

Basically, the same thing as a parallelogram

**This changes in Geometry because there are some unique properties a rhombus has that a parallelogram doesn't, but you don't need to know those right now**

Multiple Choice

Find the area of the parallelogram

• 27 ft²

• 198.25 ft²

• 182 ft²

• 2775.5 ft²

Multiple Choice

Find the area of the parallelogram.

• 15.6 cm²
• 30.6 cm²
• 13.26 cm²
• 79.56 cm²

Multiple Choice

Find the area.

•  25 square inches
• 70 square inches
• 80 square inches
• 56 square inches

Multiple Choice

The area of the rectangle is 120 ft². The base is 15 ft. What is the height?

• 8 ft
• 8 ft²
• 1800 ft
• 0.075 ft

Multiple Choice

Find the area.

• 55 square feet
• 60 square feet
• 16 square feet
• 28 square feet

Multiple Choice

The height of a parallelogram is typically shown with what?

• an arrow

• a solid line that looks like a side

• a dotted line

• a glittering unicorn

Multiple Choice

Find the area.

• 64 yards squared
• 40 yards squared
• 14 yards squared
• 48 yards squared

Multiple Choice

The base and height of a parallelogram must be...

• opposite

• perpendicular (at a right angle)

• parallel (at a wrong angle)

• a dashed line

Multiple Choice

Find the area of the figure.

• 10 cm²
• 24 cm²
• 12 cm²
• 20 cm²

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

Open Ended

How do you find the Area of a Parallelogram?

Open Ended

How does finding the Area of a Parallelogram compare to finding the area of a Rhombus?