Question

What is the length of the radius of the larger cone?
10 ft
11 ft
12 ft
13 ft

Answer 1

there's an assumption both cones are SIMILAR, thus
use their corresponding sides to get a proportion and thus get "x", that is \(\bf \cfrac{x}{8}=\cfrac{15}{12}\)

Answer 2

But what do I do to get x?

Answer 3

solve for "x", there's an assumption you know how to simplify linear equations with rationals