Area and Perimeter of Composite Figures with Circles

The distance AROUND an object is called the 

• area

• perimeter or circumference

• volume

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.

Tags

CCSS.3.MD.C.7D

A circular swimming pool is 21 feet in diameter.
How many feet around is the pool?

• 10.5 ft

• 42 ft

• 65.94 ft

• 131.95 ft

Tags

CCSS.7.G.B.4

What equation would be used to find the area? 

• = 3.14 x 5

• = 3.14 x 10

• = 3.14 x 5 x 5  

Tags

CCSS.7.G.B.4

Solve.

• 78.5 cm²

• 100 cm²

• 21.5 cm²

• 121.5 cm²

Tags

CCSS.7.G.B.4

What is the area of the figure?

• 215.75

• 212.5

• 202.96

• 200.4

In the image, what is the area of the outer ring of the circle? Use 3.14 for π. Round your answer to the nearest hundredth if necessary.

• 76.54 mm²

• 153.08 mm²

• 149.25 mm²

• 151.98 mm²

Tags

CCSS.7.G.B.4

For the school fair, Helen paints a large bullseye for the beanbag toss. The radius of the innermost circle is 6 inches. The diameter of the middle circle is 2 feet. The diameter of the largest circle is 6 feet. Helen paints the shaded region of the bullseye. How many square feet does Helen paint? Use π≈3.14

Tags

CCSS.7.G.B.4

The radius of the larger circle is 5 meters and the radius of the smaller circle is 2.5 meters. What is the approximate area of the shaded region?

• 5 squared meters

• 20 squared meters

• 59 squared meters

• 79 squared meters

What is the area of the shaded region?

• 144 - 9π

• 144 - 4π

• 144 - 3π

• 144 - 36π