Find the best approximation of the surface area of this cylinder. 1380 cm2 4280 cm2 2140 cm2 1070 cm2

asked Aug 4, 2017 207k views

1 vote

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

1380 cm2

4280 cm2

2140 cm2

1070 cm2

7.5k points

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4 votes

Answer:

1380

Explanation:

Kavita Patil answered Aug 5, 2017

7.2k points

4 votes

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 1380 cm2

FredSuvn answered Aug 8, 2017

7.3k points

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