The formula of the area of a circle is
A = [tex] \pi [/tex]r²
75 cm² = [tex] \pi [/tex] r²
Divide by [tex] \pi [/tex] on either sides to isolate r
[tex] \frac{75}{ \pi } [/tex] = [tex] \frac{ \pi r^2}{ \pi } [/tex]
[tex] \pi [/tex] and [tex] \pi [/tex] cancels out
23.89 = r²
Take square roots to cancel power of two
[tex] \sqrt{23.89} [/tex] = [tex] \sqrt{r^2} [/tex]
4.89 cm ≈ r
I dont know if the question had any options, but this is how we do it.
