The radius and height of a cylinder are in the ratio 5:7 and it's volume is 550cm^3. Find it's radius.
Answers
Answered by
18
Let radius = 5x and height = 7x
Volume = πr²h
550 = 22/7 ×(5x)²×7x
550×7/22 = 25x²*7x
25×7 = 25x²×7x
175 = 175x³
x³ = 175/175 = 1
x = 1
then
Radius = 5x = 5×1 = 5 cm
Height = 7x = 7×1 = 7 cm.
leave a likeeeeeeee
Answered by
1
.let the radius be 5x and height be 7x
according to the question
volume of cylinder= πr²h
= 22/7 × 25x ×7x = 22x×25 x= 550x³
but the given volume is 550cm³
hence 550x³ = 550cm³
x³ = 550/550 =
x³ =1
x= 1
Similar questions