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OpenStudy (anonymous):
Okay... I'm not sure how to set it up, but I'll try.
OpenStudy (anonymous):
To find the lateral area of a cylinder, multiply the circumference (3.14d) by the height (3.14dh). After you have this, you can find the total surface area by adding twice the area of the base (2*3.14r2).
(Lateral area = 3.14dh), (Surface area = 3.14dh + 2*3.14r2).
OpenStudy (anonymous):
what is dh? Sorry if that's a stupid question
OpenStudy (anonymous):
one sec
OpenStudy (anonymous):
So would it be 37.7 * 9 and then multiply that by 3.14?
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OpenStudy (anonymous):
yes
OpenStudy (anonymous):
Formula for lateral surface area of a curved surface = 2* pi * r * h.
OpenStudy (anonymous):
That's 1065.402. How do I change that in terms of pi?
OpenStudy (anonymous):
hears ex Here given that, r = 3.5cm. and h = 10cm.
Curved surface area = 2 * 22/7 * 3.5 * 10
= 220 Sq. cm.
OpenStudy (anonymous):
So 2130.804?
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OpenStudy (anonymous):
Is 22.7 pi?
OpenStudy (anonymous):
I'm not sure if I'm getting the right numbers
OpenStudy (anonymous):
yes
OpenStudy (anonymous):
Okay so it is supposed to look like 2 * 3.14 * 37.7 * 9?