Area and Circumferences Word Problems

If you have the circumference of a circle, you can solve the diameter by doing what?

• divide the circumference by 2

• multiply the circumference by 2

• multiply the circumference by pi (3.14)

• divide the circumference by pi (3.14)

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

• 81 in²

• 29.8 in2

• 59.7 in2

• 283.4 in2

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

If the word problem is asking you to find the space inside the circle, which formula should you use?

• r = d/2

• d = 2r

• C = πd

• A = πr²

• 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

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?

If the problem ask you to find the distance around a circle, which formula should you use?

• r = d/2

• d = 2r

• C = πd

• A = πr²