For a cone, if the radius was quadrupled and the slant height was reduced to one sixth of its original size, what would be the formula to find the modified surface area?

Respuesta :

The correct answer for the question that is being presented above is this one: 

First, we need to know the surface area of the cone:
Surface Area = pi * r * hs + pi * r^2 

radius= 4x * hs = 1/6 x 

modified area=2PI*hs/3 + PI (16)r^2 where r, hs are the original slant heights, and radius.