Question

Find the circumference and the area of a circle with radius 9 km

Answer 1

Answer:

508.93

Step-by-step explanation:

The formula for circumference is 2$\pi$r^2 so if you plug it in it would be

2 times pie times the radius squared which would give you 508.93

Answer 2

Answer:

Circumference= 56.52km  Area=254.47km

Step-by-step explanation:

To find the area of a circle with the radius, square the radius, or multiply it by itself. Then, multiply the squared radius by pi, or 3.14, to get the area.

The circumference = π x the diameter of the circle (Pi multiplied by the diameter of the circle).

Hope this helps