Composite Figures with Circles

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

What is the radius?

• 18

• 72

• 38

• 14

Tags

CCSS.7.G.B.4

What is the circumference?

• 48

• 96

• 24

• 18

Tags

CCSS.7.G.B.4

What is the diameter?

• 8

• 16

• 10

• 4

Tags

CCSS.7.G.B.4

What equation would be used to find the area? 

• A= 3.14 x 5

• A= 3.14 x 10

• A= 3.14 x 5 x 5  

Tags

CCSS.7.G.B.4

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

The distance AROUND an object is called the 

• area

• perimeter or circumference

• volume

Find the circumference (to the nearest whole number)

• 88 in

• 44 in

• 116 square in

• None of the above

Tags

CCSS.7.G.B.4

What is the area (to the nearest hundredth) of the figure shown below? (Both rounded regions are semi-circles.)

• 16.56 in squared

• 7.14 in squared

• 4 in squared

• 12 in squared

Find the area of the composite figure, to the nearest hundredth.

• 36 in squared

• 4.42 in squared

• 24.24 in squared

• 13.42 in squared