Composite Figure With Circles

What is the radius?

• 18

• 72

• 38

• 14

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.

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  

Find the area of the composite figure.

• 100 m²

• 139.25 m²

• 131.4 m²

• 178.5 m²

What is the area of the shaded region?

• 144 - 9π

• 144 - 4π

• 144 - 3π

• 144 - 36π

A half circle is joined to an equilateral triangle with side lengths of 12 units. What is the perimeter of the resulting shape?

• 113.04 units

• 42.84 units

• 61.68 units

• 36 units

What is the approximate area of the shaded region? (Round to the nearest whole number.)

• 70 cm²

• 12 cm²

• 82 cm²

• 58 cm²

Solve.

• 78.5 cm²

• 100 cm²

• 21.5 cm²

• 121.5 cm²

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