Find the surface area of a cylinder with a height of 20 inches and base radius of 7 inches

As, we have :

To find surface area, we have a formula :

By filling values :

Now, put value of π = 22/7

Hence, Surface area of given cylinder is 1188 inches².

step-by-step explanation:

first, eliminate the parenthesis:

3

x

+

2

−

4

x

second, group like terms:

3

x

−

4

x

+

2

third, combine like terms:

(

3

−

4

)

x

+

2

→

−

1

x

+

2

→

−

x

+

2

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step-by-step explanation: