Question

Use the area to find the radius. If you could include steps that’ll be very helpful :)

Answer 1

Radius = 13 m

Explanation:

Formula for area of circle is given as:

`A = \pi {r}^(2) \\ \\ \therefore \: 169\pi \: = \pi {r}^(2) \\ \\ \therefore \: {r}^(2) = (169\pi )/(\pi) \\ \\ \therefore \: {r}^(2) = 169 \\ \\ \therefore \: {r} = \pm √(169) \\ \\\therefore \: r = \pm \: 13 \: m \\ \\ \because \: radius \: of \: a \: circle \: can \: not \: be \: a \: negative \: \\quantity \\ \\ \huge \red{ \boxed{\therefore \: r = 13 \: m }}`