Asked by Skye
A cylinder is 12 cm tall and has a diameter of 3 cm. What is the total surface area?
Pi x radius x radius=3.14 x 1.5 x 2=9.42 cm
Pi x diameter= 3.14 x 3= 9.42cm
length x width= 9.42 x 12= 113.04cm
Total Surface Area= 9.42+9.42+113.04=131.8cmsquared.
The answer is 157cm.
I don't understand how to get the answer 157cm.
Pi x radius x radius=3.14 x 1.5 x 2=9.42 cm
Pi x diameter= 3.14 x 3= 9.42cm
length x width= 9.42 x 12= 113.04cm
Total Surface Area= 9.42+9.42+113.04=131.8cmsquared.
The answer is 157cm.
I don't understand how to get the answer 157cm.
Answers
Answered by
Damon
pi * 1.5 * 1.5 * 2 = 14.14
you did not square r in pi r^2
you did not square r in pi r^2
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