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notka56 [123]
3 years ago
11

► Find the surface area of cylinder whose base diameter is 5cmand height is 30cm.(pi=22/7)​

Mathematics
2 answers:
Aloiza [94]3 years ago
7 0

Answer:

<h2><em>5</em><em>1</em><em>0</em><em>.</em><em>7</em><em>1</em><em> </em><em>cm^</em><em>2</em></h2>

<em>Solution</em><em>,</em>

<em>diameter = 5 \: cm \\ height = 30 \: cm \\ surface \: area \: of \: cylinder \\  = 2\pi \: r(h + r) \\  = 2 \times  \frac{22}{7}  \times 2.5(30 + 2.5) \\  = 5 \times \frac{22}{7}  \times 32.5 \\  = 510.71 \:  {cm}^{2}</em>

<em>hope </em><em>this </em><em>helps.</em><em>.</em><em>.</em>

<em>Good </em><em>luck</em><em> on</em><em> your</em><em> assignment</em><em>.</em><em>.</em><em>.</em>

Dmitriy789 [7]3 years ago
7 0

Answer :

Here,

Diameter = 5cm so, radius = 5/2 = 2.5

Height = 30 cm

Surface area of a cyclinder = 2πr(r+h)

= 2 × 22/7 × 2.5 ( 30 + 2.5 )

= 5  ×  22/7  ×  32.5

<u>= 510.71 cm²</u>

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