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I need help with a problem help pls

I need help with a problem help pls-example-1

2 Answers

2 votes
2 π x 3 x 7 + π x 3^2 x2= 60 π= 188
User Jackcogdill
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8.5k points
2 votes
There are 2 circular bases: A = π r²
A = π (3)²
= 9 π

There is one lateral face that is a rectangle: A = L x W
In this instance, the length equals the perimeter of the circle: L = 2 π r
A = 2 π (3) x 7
= 42 π

Surface Area = 2(9 π) + 42 π
= 18 π + 42 π
= 60 π
≈ 188

Answer: D
User CheGuevarasBeret
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7.4k points