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Gekata [30.6K]
2 years ago
15

Question 2 help me please

Mathematics
2 answers:
tigry1 [53]2 years ago
6 0

Answer:

90π in²

Step-by-step explanation:

<h3>Surface area of cylinder:</h3>

  r = 3 in

  h = 10 in

     \sf \boxed{\text{\bf Surface area of cylinder =$\pi r^2h$}}

                                                   = \pi 3*3*10\\\\= 90 \pi \ in^2

aleksandr82 [10.1K]2 years ago
3 0
<h3>✭ <u>Explanation</u> -:</h3>

In this question it is given that the radius of a cylinder is 3 inches. The height of the cylinder is 10 inches. We are asked to calculate the surface area of the cylinder in terms of π .

Radius = 3 inches

Height = 10 inches

We know,

\star \:  \small \boxed{\rm{ Surface \:  area \:  of  \: a  \: cylinder = πr²h}}

Substituting the values we get

\small\sf{ Surface \:  area  \: of \:  a \:  cylinder = π × 3² × 10}

\small\rm{ Surface \:  area  \: of  \: a  \: cylinder = π × 3 \times 3 × 10}

\small\rm Surface \:  area  \: of \:  a  \: cylinder = π × 90

\small\sf{ Surface \:  area \:  of  \: a \:  cylinder =  \bf{90 π \:  inches²}}

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