Question

Find the circumference of a circle with diameter, d = 31cm.
Give your answer in terms of pi.​

Answer 1

754.9
`\pi`

Explanation:

31÷2=15.5

3.142×15.5²=754.8655

rounded 754.9
`\pi`

Answer 2

L=πD

D=L/π

D=31.4см/3.14=10см

Explanation: