Answer: 13.7 ft
Step-by-step explanation:
Use Pythagorean theory to find radius
C^2 - B^2 = A^2
We know the hypotenuse (cone to edge) is 15
We will call that C
We know the height is 6
We will call that B
We are looking for A or radius
15^2 - 6^2 = A^2
225 - 36 = A^2
189 = A^2
Take square root of both sides
13.7 = A (radius)