Find the surface area of the sphere to the nearest square unit. Use a calculator.

"Im Gonna Draw The Picture So Hold On, I Don't Know How To Get The Answer So Please Help"

A. 13 in.2

B. 50 in.2

C. 6 in.2

D. 3 in.2

Question

Find the surface area of the sphere to the nearest square unit. Use a calculator. 

"Im Gonna Draw The Picture So Hold On, I Don't Know How To Get The Answer So Please Help"

A. 13 in.2	

B. 50 in.2	

C. 6 in.2	

D. 3 in.2

anonymous · Answer

To find surface area, it's simple, just sub your givens into the formula.
4pir2

anonymous · Answer

|dw:1334360830592:dw|

anonymous · Answer

4(pi)r2
What is your radius? Sub that into the formula.

alexwee123 · Answer

is 2in your radius or diameter?

anonymous · Answer

clearly the diameter

anonymous · Answer

No The Line About The 2in I Think Is The Radius

anonymous · Answer

^Above

anonymous · Answer

Give him a chance to do it, don't just give the answer.

alexwee123 · Answer

k ill just give you the formula 
A=4pi(radius)square

anonymous · Answer

For any problem involving a formula.
1. List out your givens.
2. Sub givens into formula.

anonymous · Answer

How Are U Guys Getting The Number 4??

anonymous · Answer

That's just part of the formula 4pi(r)^2

anonymous · Answer

that is a constant in the formula  - for any sphere
SA = 4 pi r^2

anonymous · Answer

Understanding the theory behind it is unnecessary, don't worry about that.

anonymous · Answer

Haha Ok Thanks