The volume of this cylinder is 8700m3. Find the length of the radius, r . Give your answer rounded to 3 SF. The height is 30m.

Guest Oct 24, 2019

edited by
Guest
Oct 24, 2019

#1**0 **

*The volume of this cylinder is 8700m3. Find the length of the radius, r . Give your answer rounded to 3 SF. The height is 30m*

The volume of a cylinder is the area of the base times the height. V = h • π • r^{2} ( π is pi, i.e., 3**.**1416 )

This specific question 8700 = 30 • 3**.**14216 • r^{2}

8700 = 94**.**248 • r^{2}

r^{2} = 8700 / 94**.**248 = 92**.**3097

r = sqrt (92**.**3097) = 9**.**6078 = 9**.**61 meters

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Guest Oct 24, 2019