Find the Area and Circumference

Find the circumference of the circle.

• 31.4 cm

• 78.5 cm

• 314 cm

• 15.7 cm

What is the area of the circle?

• 15.7 cm²

• 78.5 cm²

• 31.4 cm²

• 5 cm²

Find the area of the rectangle.

• 24 ft²

• 12 ft²

• 32 ft²

• 89 ft²

Find the area of the trapezoid.

• 108 cm sq

• 60 cm

• 432 cm sq

• 216 cm sq

What is the area of a square with a side length of 4 cm?

• 16 cm

• 16 square cm

• 8 cm

• 8 square cm

What is the formula for area of a circle?

• C=πd

• C=πd²

• A=πr²

• A= C/d

What is the circumference of the circle?

• 25.12 in.

• 12.56 in.

• 50.24 in.

Find the area of this triangle.

• 20 cm²

• 35 cm²

• 40 cm²

• 17.5 cm²

Find the area of the triangle shown.

• 16 square inches

• 12 square inches

• 24 square inches

• 48 square inches

Sally tried to solve for the area of circle. Her work is shown. What mistake did Sally make.

• Sally squared π incorrectly.

• Sally multiplied the π and radius incorrectly.

• Sally used diameter instead of the radius.

• No mistake. Sally solved the problem correctly.