Question

cm
1. The radius of a cylinder is 7 cm and its height 10 cm.
Find the surface area, total surface area and volume
of the cylinder.​

Answer 1

${\huge{\sf{\green{\underline{\underline{Solution}}}}}}$

Given, radius = 7cm

height = 10 cm.

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✰ Surface Area Of Cylinder:-

formula => 2πrh

put the values in the formula.

=> 2 × 22/7 × 7 × 10

=> 44 × 10

=> $44\:cm{^2}$

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✰Total Surface Area :-

Formula:- 2πr(h+r)

=> 2 × 22 /7 × 10 ( 10 + 7 )

=> 440/7 × 17

=> 62.8 × 17

=> 879.2 cm${^2}$

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✰Volume of Cylinder:-

Formula:- $πr{^2}h$

=>$22/7×7{^2}×10$

=> 22/7 × 7 × 7 × 10

=> 154 × 10

=> $1540\:cm{^3}$

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