Question

the area of a circle is 380 sq inches find the radius

Answer 1

What is the equation which relates circular area to the radius?

Answer 2

area = pi X radius squared

Answer 3

ok, so.
\[A = \pi r^2\]
\[A = 380 \]
\[\pi r^2 = 380\]
\[r^2 = \frac{380}{\pi}\]
\[r = ?\]

Answer 4

10.99?

Answer 5

yeah, thereabouts.

Answer 6

ohh ok thanks