Question

A circular fountain has a radius of 9.4 feet. Find its diameter and circumference to the nearest hundredth. ( Please help)

Answer 1

• The diameter is 11.20 feet.
• The circumference is approximately 35.17 feet.

Explanation:

Use the formula.

d = 2r The diameter of a circle is the same as 2 times the radius.

d = 2(5.6) The radius is 5.6. Substitute 5.6 for r.

d = 11.20 Multiply.

Use the formula.

C = πd

C = π(11.20) The diameter is 11.20. Substitute 11.20 for d.

C ≈ 3.14(11.20) Substitute 3.14 for π.

C ≈ 35.17 Multiply.

The diameter is 11.20 feet.

The circumference is approximately 35.17 feet.

Answer 2

A circle is 360 and it has a radius then 9.4 you will get 40.7