3 years ago

Find the best approximation of the surface area of this cylinder.

1 answer:

8 0

The main formula is A= 2pi r (H + r)
H= 9, and r= 11
so A= 2 *3.14*11* (9 + 11) = 1381.6 cm²
so the answer is <span>1380 cm2</span>

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