I had to find the surface area of a cylinder and I have to write the answer in terms of pi how do I do that when I got 113.04? Do I just add pi to it? ex 113.04πyd62?

Question

ganeshie8 · Answer

Nope.

ganeshie8 · Answer

what are the dimensions of cylinder ?

anonymous · Answer

r=2 yds h=7yds ?

anonymous · Answer

What is the formula for surface area of a cylinder

ganeshie8 · Answer

whats the formula for surface area ?

anonymous · Answer

is it yards

anonymous · Answer

yes yards and A=2πrh+2πr^2

ganeshie8 · Answer

factor out $\pi$  and evaluate remaining stuff

ganeshie8 · Answer

A=2πrh+2πr^2
  = π(2rh + 2r^2)
  = π(??? )

anonymous · Answer

this is what I got =π(28+8)
= π(36)
=113.04
or am I wrong?

ganeshie8 · Answer

you're absolutely correct ! but you did more than asked

ganeshie8 · Answer

this is what I got =π(28+8)
= π(36) *********************************
=113.04
or am I wrong?

ganeshie8 · Answer

you must stop there itself, cuz you're asked to leave the answer in terms of π

anonymous · Answer

give the answer in terms of pi

anonymous · Answer

oh so it would just be 36π? or as you stated π36?

ganeshie8 · Answer

36π  looks more neat

anonymous · Answer

It also asks for the unit whiihc is yards so I would add yds62 too? Or leave as is?

anonymous · Answer

Here 36 is a co-efficient of pi
We always write co-efficients first

anonymous · Answer

yd^2*

anonymous · Answer

35 pi yd^2

anonymous · Answer

Alright thank you both so much for helping and explaining this to me.

anonymous · Answer

No problem and wc

ganeshie8 · Answer

np :) btw with units, its `36π yd^2`