Asked by Tim
1. What is the surface area of the cylinder in terms of pi? The diagram is not drawn to scale.
A) 990 pi in^2
B) 342 pi in^2
C) 378 pi in^2
D) 504 pi in^2
The radius is 9 and the height is 19.
when I solve this, no matter what the formula is, I always get 523, which means there's something I'm doing wrong. Any help would be really great. Thank you
A) 990 pi in^2
B) 342 pi in^2
C) 378 pi in^2
D) 504 pi in^2
The radius is 9 and the height is 19.
when I solve this, no matter what the formula is, I always get 523, which means there's something I'm doing wrong. Any help would be really great. Thank you
Answers
Answered by
Steve
a = 2πr(r+h) = 2π(9)(9 + 19) = 504π
So, D
How did you get 523?
So, D
How did you get 523?
Answered by
Tim
I used the formula, 2 pi r^2+ pi dh.
It seems what you did was much much easier though.
It seems what you did was much much easier though.
Answered by
Tim
Thank you so much by the way!
Answered by
Steve
your formula is correct, but your answer is not. Oh, well.
Answered by
s
D) 504 pi in^2
Answered by
rick rollin up in here
thanks s
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