Composite Figures

​Composite Figures

LET'S REVIEW

Multiple Choice

What is the perimeter of this square?

• 3 units

• 6 units

• 9 units

• 12 units

Multiple Choice

What is the area of this shape?

• 11 inches

• 28 inches

• 11 square inches

• 28 square inches

Multiple Choice

What is the area of this triangle?

• 6 cm²

• 12 cm²

• 15 cm²

• 20 cm²

Multiple Choice

Find the circumference. Round to the nearest tenth.

• 18.8 cm.

• 75.4 cm.

• 37.7 cm.

• not enough information

Multiple Choice

Find the area of the circle below.

• 31.4 cm²

• 15.7 cm²

• 25 cm²

• 78.5 cm²

Area

The amount of space a shape takes up

KEY WORDS:
- Area
- Surface
- Cover
- Curtain
- Tile
- Carpet
- Inside

Perimeter

The distance AROUND a shape

KEY WORDS
- Fencing
- Outline
- Border
- Framing
- Around
- Outside
- Edge ( Edging)

• A composite figure is made up of two or more shapes

• To find the area, decompose the figure into shapes with area you know, then ...

Composite Figures

​ADD areas together.

Multiple Choice

What 2 shapes do you see in this composite figure?

• Triangle and Rectangle

• Two Diamonds

• Triangle and Square

• Two Triangles.

Multiple Choice

What 2 shapes do you see in this composite figure?

• Triangle and Rectangle

• Circle and Square

• Semi Circle and Square

• Semi Circle and Rectangle

Multiple Choice

What 2 shapes do you see in this composite figure?

• Triangle and Rectangle

• Circle and Square

• Semi Circle and Square

• Semi Circle and Rectangle

Multiple Choice

Calculate the area. Use 3.14 for pi. Round to the nearest tenth if needed.

• 1582.8 cm ²

• 1476.4 cm ²

• 586.2 cm ²

• 602.5 cm ²

Multiple Choice

The figure is made up of a square and two semicircles. Find the perimeter.

• 8 m

• 41 m

• 23 m

• 16 m

Multiple Choice

 What is the area of the figure?

• 48 square feet
• 216 square feet
• 65 square feet
• 128 square feet

When the shapes are inside each other, you are asked to find the area of a "shaded region." To do this, find the area of each figure, then SUBTRACT.

Multiple Choice

What is the area of the shaded region?

• 14 m²
• 120 m²
• 106 m²
• 134 m²

Multiple Choice

A model of a rectangular stove top with four circular burners is shown. The side lengths of the stove top and the diameters of the burners are labeled.

Which measurement is the best estimate of the area in square inches of the stove top (Shaded Region) that does not include the area of the burners?

• $$113\ in^2$$

• $$641\ in^2$$

• $$415\ in^2$$

• $$528\ in^2$$