Circle Area Calculation

What is the area of a circle with a radius of 4.5 centimeters, using 3.14 for π? Round

• 25.12 square centimeters

• 63.59 square centimeters

• 254.35 square centimeters

• 31.78 square centimeters

Find the area of the shape below. Use 3.14 for π.

• 98.13 square units

• 50.24 square units

• 28.26 square units

• 100.48 square units

Wendy’s bicycle tires have a diameter of 38 centimeters. Using 3.14 for π, find the distance around one tire.

• 119.32 cm

• 77.9 cm

• 238.64 cm

• 59.66 cm

The circumference of a circle is 44 inches. What is the approximate radius of the circle?

• 7 inches

• 14 inches

• 22 inches

• 28 inches

Find the area of the shape.

• 42 square units

• 56 square units

• 52 square units

• 67 square units

The radius of a smaller circle is half the length of the radius of a larger circle. The circumference of the larger circle is 125.6 inches. What is the approximate area of the smaller circle?

(a)  

Marquita is remodeling her bathroom. She needs to cut a circular hole out of a countertop to place the sink, as shown in the figure below. What will be the area of the countertop once Marquita cuts the hole, to the nearest tenth of a square foot?

(a)  

Find the radius

• 31.4 m

• 10 m

• 20 m

• 15.7 m

• 69.08 cm²

• 863.94 cm²

• 104.06 cm²

• 414.92 cm²

A graphic designer created a new logo for a company that will be printed on a large sign. The logo is a rectangle that has a semicircular piece removed. What is the approximate area of the shaded part of the logo? 

• 77 square feet

• 42 square feet

• 69 square feet

• 35 square feet

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