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2 years ago

What is the surface area of the figure? Use 3.14 for π....PLEASE HELP....NEED HELP ASAP

Mathematics

2 answers:

raketka [301]2 years ago

3 0

Answer:

Step-by-step explanation:

Always use your imaginary scissor:

Cut the above and below circle and the cylinder role it down-ways like a carpet and you will end up with two circles and a big rectangular.

Surface circle: 7 * 7 * 3,14 = 153.86

Surface carpet: 20 * circle exterior (or the length of the circle)= 20 * 2* 3.14 * 7

Results:

153, 86 * 2 (because we cut 2 circles from the cylinder) + 132,6 = 439.6

Answer: A

BabaBlast [244]2 years ago

3 0

A is the answer

X

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Hands

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