Circles Surface Area Volume

Find the equation to solve for the surface area of the cylinder.

• SA = πrl + B

• SA = 2πrh + 2B

• SA = 4πr2

• SA = 6a2

what is the formula for finding area of a circle

• C = π r²

• A = π r²

• A = π r² / 2

• C = 2 π r

The diagram below models the length from the center of a wind turbine to the tip of one of its blades. Which of these is closest to the total area covered by the blade when the turbine makes 1 revolution?

• 3,215 m²

• 100 m²

• 1,024 m²

• 201 m²

What is the area of this circle?

• 62.59

• 113.1

• 19.81

• 28.26

Find the area of the circle. Round your answer to the nearest whole number.

• 153

• 154

• 22

• 21

Find the area of the circle

• 56.52 sq. inches

• 254.34 sq. inches

• 1017.36 sq. inches

• 113.04 sq. inches

What is the area of this circle?

• 62.59 cm²

• 113.1 cm²

• 19.81 cm²

• 28.26 cm²

What is the radius of this circle?

• 140

• 35

• 70

Ms. Catall is using a compass to find her way out of the woods. The compass has a radius of 4 centimeters. What is the compass's area?

• 49.2 cm²

• 45.6 cm²

• 50.24 cm²

• 55.9 cm²

find the area of the circle with radius 3 cm below.

• 100 cm²

• 225 cm²

• 9 cm²

• 28.26 cm²