Question

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

Answer 1

Answer:

126

Step-by-step explanation:

Answer 2

Answer:

≈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,

$A = \pi rl+\pi r^2\\where~l = \sqrt{r^2+h^2}\\\\A = \pi r(r+\sqrt{h^2+r^2} )$

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!

$A = \pi r(r+\sqrt{h^2+r^2} )$

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

$A = \pi *r*(r+\sqrt{h^2+r^2} ) = 140.8$

140.8 ≈  Option C) 126