Radius and Diameter Word Problems

The circumference of a circle is 45.53 yd. What is the diameter of that circle?

• 14.5 yd.

• 15.4 yd.

• 13.8 yd.

• 142.96 yd.

The circumference of a circle is 67.89 yd. What is the diameter of that circle?

• 18.9 yd

• 22.7 yd

• 21.62 yd

• 23.8 yd

If you have the circumference of a circle is 35.8 in, what is the radius of that circle?

• 5.7 in

• 11.4 in

• 17.9 in

• 70.16 in

If you have the circumference of a circle is 149 ft., what is the radius of that circle?

• 47.45 ft

• 23.7 ft.

• 74.5 ft.

• None of the above

Leo is building a fence around a circular vegetable garden. If he has to use 35.6 yd of mesh to make the fence, what is the area of the garden?

The radius of this pizza is 9.5 in. What is the approximate area of the pizza rounded to the nearest tenth? (Use 3.14 for π)

• 81 in²

• 29.8 in2

• 59.7 in2

• 283.4 in2

• 12.56 sq ft

• 56.52 sq ft

• 25.12 sq ft

• 3.14 sq ft

• 50.24  yd

• 25.12 yd

• 38.92  yd

• 12.56 yd

Caedyen has trained his puppy, Chase, to jump through a ring. According to Caedyen's measurements and calculations, the ring has a diameter of 3.5 feet. What is the ring's circumference rounded to the nearest whole number (use 3.14 for pi)?

• 10 ft

• 12 ft

• 11 ft

• 21 ft

Which formula would you use to answer: Ethan is painting a large circle on one wall of his new apartment. The circle is 8 feet across. Approximately how many square feet of wall will the circle cover?