Question

I want to know how to calculate the radius, Im very confused.

Answer 1

Answer:

a 10 ft

Step-by-step explanation:

To find the height of similar shapes, write a proportion of equal ratios.

$\frac{12}{15}=\frac{8}{y}$

Cross multiply to solve for y.

12y = 15(8)

12y = 120

y=10