Question

the radius and height of a cylinder are in the ratio 5:7 and it's volume is 550 cm³ . Find its radius.​

Answer 1

Answer:

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Answer 2

✪GIVEN :- The radius and height of a cylinder are in the ratio 5:7 and it's volume is 550 cm³.

✪REQUIRED TO FIND :- RADIUS.

✪FORMULA USED:-

$= > \boxed{v = \pi \: r {}^{2}h }$

✍SOLUTION :-

Given the ratio is 5:7,

Let,

》radius = r = 5x

》height=  h = 7x

V = πr²h

=> 550 = 22/7 × (5x)² × 7x

=> 550 = 22 × 25 x³

       = 550 x3

》 x³ = 1

x= 1

Therefore,

》 Radius = 5x = 5×1= 5 cm

》 height = 7x = 7×1 = 7 cm.

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