Question

Find the circumference Please help

Answer 1

Answer:

area = 147 cm²

circumference = 42 cm

Explanation:

area of a circle = $\pi$ r²

• $\pi$ is 3
• r is 7 cm

area = 3 × 7²

= 49 × 3

= 147 cm²

circumference of a circle = 2 $\pi$ r

circumference = 2 × 3 × 7

= 42 cm

Answer 2

147 is the circumference.

since the directions say to use 3 as pi, and we know that the radius is 7, we can say that

3 times 7^2 = A, which is 147