Question

PLEASE HELP DUE TODAY!!!!!!!!!

Answer 1

≈126

Part 1: Discussing the equations

When dealing with surface area, varying by shape, it can get quite complex. It would help a lot if we know how to do this problem first before jumping right in. First, we go over the dimensions, given values, and then the formula.

• Height(h)--6 in.
• Radius to base(r)--4 in.

Those(↑) are the dimensions we know of so far, but the question is, how do you find the surface area of a cone? It's simple, all you have to do is,

`A = \pi rl+\pi r^2\\where~l = √(r^2+h^2)\\\\A = \pi r(r+√(h^2+r^2) )`

Part 2: Solving the problem

Now that we have gone over the terms we must use, what we know, and more, we are ready to solve the problem!

`A = \pi r(r+√(h^2+r^2) )`

Convert most of the problem by separating the signs close to each other with multiplication signs, indicating multiplication.

`A = \pi *r*(r+√(h^2+r^2) ) = 140.8`

140.8 ≈ Option C) 126

Answer 2

126

Explanation: