Area and Circumference of a Circle

Q.1)

Round to the nearest tenth. Find the circumference of a circle with a radius of 5.6 meters.

A. 98.5 B. 35.2 C. 36.8 D. 18.5

Q.2)

Round to the nearest tenth. Find the circumference of a circle with a radius of 51.25 inches.

Q.3)

Round to the nearest tenth. Find the circumference of a circle with a radius of 30.9 centimeters.

A. 194.1 B. 2998.1 C. 97.0 D. 61.8

Q.4)

Round to the nearest tenth. Find the area of a circle with a diameter of 19 mm.

Q.5)

Round to the nearest tenth. Find the area of a circle with a diameter of 25 yd.

A. 157.0 B. 256.3 C. 1962.5 D. 503.1

Q.6)

Round to the nearest tenth. Find the area of a circle with a radius of 13.8 m.

Q.7)

Round to the nearest tenth. Find the area of a circle with a diameter of 46.2 cm.

A. 6702.1 B. 1587.3 C. 1675.5 D. 145.1

Q.8)

Round to the nearest tenth. Find the area of a circle with a radius of 3.25 in.

Q.9)

Round to the nearest tenth. Find the area of a circle with a diameter of 6.8 meters.

A. 36.3 B. 36.4 C. 145.2 D. 145.1

Q.10)

Round to the nearest tenth. A spinkler can spray water 10 feet in all directions. How much area can the sprinkler water?

A. 62.8 sq.feet B. 36.3 sq.feet C. 314.0 sq.feet D. 98.9 sq.feet

Q.11)

Round to the nearest tenth. What is the number of square meters of a half circle whose diameter is 8 m?

A. 50.2 B. 45.6 C. 15.3 D. 25.1

Q.12)

Round to the nearest tenth. Olivia used a stick to draw a circle in the sand. The circle was 4 meters in radius. How many square meters were inside the circle?

A. 50.2 B. 25.1 C. 45.6 D. 13.6

Q.13)

Round to the nearest tenth. Isabella baked cookies that were each about 14 centimeters in radius. About how many square centimeters was the area of each cookie?

A. 307.7 B. 615.4 C. 87.9 D. 14.0

Q.14)

Round to the nearest tenth. Ryan used a drafting compass to draw a circle on paper. The circle was 12 cm in radius. How many square centimeters were inside the circle?

A. 144.2 B. 425.1 C. 388.7 D. 452.2

Q.15)

Round to the nearest tenth. A pizza was cut into 8 equal pieces. John's crust on his piece measured 5 inches. From the point of his slice to the edge of his crust, how many inches long was John's slice?

A. 78.5 B. 40.0 C. 12.7 D. 6.4