Untitled Presentation

Open Ended

Why is it important to learn about the areas of composite figures in real life?

Multiple Choice

Which of the following shapes can be combined to form a composite figure?

• Square, triangle, and circle

• Hexagon and pentagon only

• Only rectangles

• Only circles

Open Ended

What shape do you formed?

Multiple Choice

A rectangle is a parallelogram with how many right angles?

• 2

• 3

• 4

• 0

Multiple Choice

Which of the following is the correct formula for the area of a parallelogram?

• base x height

• length x width

• side x side

• πr^2

Multiple Choice

Which shapes are needed to calculate the total area of the figure in image 3?

• Rectangle and triangle

• Rectangle and circle

• Two rectangles

• Rectangle and parallelogram

Open Ended

How would you find the total area of a figure that is made up of two rectangles joined together?

Fill in the Blanks

Fill in the blank: The formula for the area of a semi-circle is πr^2 ÷

.

Fill in the Blanks

Area is the number of

units needed to cover a space.

Multiple Choice

What is the standard unit of measurement for area?

• Square unit

• Cubic unit

• Meter

• Centimeter

Open Ended

Explain how you would find the area of a composite figure made up of a rectangle and a semi-circle, such as the stage hall shown in the diagram.

Multiple Choice

Which of the following is the correct way to find the area of Mr. Gutierrez's kitchen as shown in the figure?

• Divide the figure into two rectangles and add their areas.

• Multiply all the side lengths together.

• Add the perimeter of the figure.

• Divide the figure into triangles and add their areas.

Multiple Select

Which of the following are necessary steps to find the area of the shaded part in the board work problem (Image 4)?

• Calculate the area of the bigger circle

• Calculate the area of the smaller circle

• Subtract the area of the smaller circle from the bigger circle

• Add the areas of both circles

Open Ended

Describe a real-life situation where you might need to find the area of a shaded region, similar to the bridge example in the Think-Pair-Share activity.

Fill in the Blanks

The area of a trapezoid can be found using the formula: Area = ((base1 + base2) × height) ÷

.

Multiple Choice

Which formula would you use to find the area of a square?

• side × side

• base × height

• (base1 + base2) × height ÷ 2

• π × radius²

Open Ended

How would you approach finding the area of a figure made up of four semi-circles and a square?

Multiple Select

Which of the following shapes can be part of a composite figure?

• Square

• Triangle

• Circle

• All of the above

Open Ended

What is a composite figure and which basic shapes can it be made from?

Multiple Choice

If a square has a side length of 7 cm, what is its perimeter?

• 14 cm

• 21 cm

• 28 cm

• 49 cm

Open Ended

Describe the difference between the area formulas for a triangle and a circle, and give an example of when you would use each.

Fill in the Blanks

The area of a semicircle is

the area of a circle.

Multiple Choice

Which formula would you use to find the area of a circle if you know the radius?

• A = π × r²

• A = ½ × base × height

• A = π × diameter

• A = 2 × π × r

Multiple Select

Which of the following steps are necessary to find the area of a composite figure?

• Divide the figure into simple shapes

• Find the area of each simple shape

• Add the areas together

• Multiply the areas together

Open Ended

Explain how you would find the area of the irregular figure shown in the image.

Multiple Choice

What is the first step you should take when finding the area of a composite or irregular-shaped figure?

• Divide it into simple, non-overlapping figures

• Find the perimeter first

• Multiply all the side lengths

• Estimate the area visually

Multiple Choice

Which shapes are commonly used to form composite figures?

• Square, triangle, and circle

• Hexagon, pentagon, and octagon

• Rectangle, parallelogram, and ellipse

• Trapezoid, rhombus, and kite

Open Ended

What did you learn about finding the areas of composite figures today?