The surface area of a cylinder of radius 3m and height of 8m, using pi= 3.1416 is?
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explanation:

previous steps have made pa≅ pb ≅ st ≅ su. setting the compass width to ab allows you to make tu the same length. then δstu ≅ δpab by the sss congruence postulate, and ∠p ≅ ∠s by the reason cpctc.

236 cm 16 time 12 = 192

6 times 7 = 42

192+42