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4 votes
What is the surface area of a cylinder with a height of 9.5 inches and a radius of
2.5 inches?

User JanuszO
by
4.6k points

2 Answers

5 votes

Answer:

188.4 inches squared

Explanation:

to calculate the surface area of a cylinder given that

height of the cylinder = 9.5 inches

radius = 2.5 inches

recall that the formulae for calculating the surface area of a cylinder = 2πrh + 2πr2

surface area of a cylinder = 2πrh + 2πr²

surface area of a cylinder = 2 x 3.14 x 2.5 x 9.5 + 2 x 3.14 x (2.5)²

surface area of a cylinder = 6.28 x 2.5 x 9.5 + 6.28 x 6.25

surface area of a cylinder = 149.15 inches² + 39.25inches²

surface area of a cylinder = 188.4 inches²

3 votes

Answer:

surface area of a cylinder = 188.4 inches²

Explanation:

to calculate the surface area of a cylinder given that

height of the cylinder = 9.5 inches

radius = 2.5 inches

recall that the formulae for calculating the surface area of a cylinder = 2πrh + 2πr²

surface area of a cylinder = 2πrh + 2πr²

surface area of a cylinder = 2 x 3.14 x 2.5 x 9.5 + 2 x 3.14 x (2.5)²

surface area of a cylinder = 6.28 x 2.5 x 9.5 + 6.28 x 6.25

surface area of a cylinder = 149.15 inches² + 39.25inches²

surface area of a cylinder = 188.4 inches²

User Bruce McLeod
by
4.3k points