Math Database Circles

Identify a diameter of the circle.

Find the area in square inches of a circle with a radius of 15 inches. Use 3.14 for π.

A circle has a circumference of 70 centimeters. Find the diameter to the nearest tenth of a centimeter. Use 3.14 for π.

The circumference of a circle is 45 inches. Find the area of the circle in square inches. Round to the nearest tenth. Use 3.14 for π.

The area of a circle is 60 square centimeters. Find the circumference of the circle in centimeters. Round to the nearest tenth. Use 3.14 for π.

A circle has an area of 12 square feet. Find the diameter to the nearest tenth of a foot. Use 3.14 for π.

A half circle has an area of 45 square centimeters. Find the diameter to the nearest tenth of a centimeter. Use 3.14 for π.

A circular dinner plate has a diameter of 13 inches. A ring is placed along the edge of the plate. Find the circumference of the ring in inches. Use 3.14 for π.

Find the area in square centimeters of a circle with a diameter of 16 centimeters. Use 3.14 for π.

The area of a half circle is 48 square centimeters. Find the circumference of the curved portion of the half circle to the nearest tenth of a centimeter. Use 3.14 for π.

Half of a circular garden with a radius of 11.5 feet needs weeding. Find the area in square feet that needs weeding. Round to the nearest hundredth. Use 3.14 for π.

A dime has a radius of 8.5 millimeters. Find the circumference in millimeters of the dime. Use 3.14 for π.

A rug is shaped in a half circle. The curved edge of the rug has a circumference of 74 inches. Find the area of the rug to the nearest tenth of a square inch. Use 3.14 for π.

A circular manhole cover has a circumference of 183 inches. Find the area to the nearest tenth of a square inch. Use 3.14 for π.

The circumference of a circle is 92 centimeters. Find the area of the circle to the nearest tenth of a square centimeter. Use 3.14 for \( \pi \).

The area of a circular drum top is 175 square inches. Find the diameter to the nearest tenth of an inch. Use 3.14 for \( \pi \).

Find the circumference in centimeters of a circle with a radius of 11 centimeters. Use 3.14 for π.

Find the area in square millimeters of a circle with a radius of 9 millimeters. Round to the nearest hundredth. Use 3.14 for \(\pi \). 

A circle has an area of 240 square centimeters. Find the radius to the nearest tenth of a centimeter. Use 3.14 for π.

A tree has a circumference of 340 centimeters. Find the diameter to the nearest tenth of a centimeter. Use 3.14 for \( \pi \).

A circle has a circumference of 72 centimeters. Find the radius to the nearest tenth of a centimeter. Use 3.14 for π.

A circle has a circumference of 180 inches. Find the diameter to the nearest tenth of an inch. Use 3.14 for π.

The area of a circle is 18 square inches. Find the circumference of the circle to the nearest tenth of an inch. Use 3.14 for π.

A half circle has an area of 50 square inches. Find the radius to the nearest tenth of an inch. Use 3.14 for π.

A tire has a circumference of 70 inches. Find the radius to the nearest tenth of an inch. Use 3.14 for π.

The bottom of a plastic pool has an area of 64 square feet. What is the radius to the nearest tenth of a foot? Use 3.14 for π.

The area of a penny is approximately 11 square millimeters. Find the circumference of a penny to the nearest tenth of a millimeter. Use 3.14 for \( \pi \).

The area of a circular hand mirror is 200 square centimeters. Find the circumference of the mirror to the nearest tenth of a centimeter. Use 3.14 for \(\pi\).

The circumference of a \( \pi \) is 300 centimeters. Find the area of one-fourth of the pie to the nearest tenth of a square centimeter. Use 3.14 for \( \pi \).

Find the circumference, in inches, of a circle with a diameter of 6 inches. Use 3.14 for \(\pi\).