Question

a right circular cylinder of height 7 cm has a curved surface area of two 11.2 CM square find its volume​

Answer 1

Answer:

given,

 h=7cm    

CSA= $2\pi rh$ =11.2$cm^{2}$

r=11.2/$2\pi (7)$

from this we can say r= 0.25(approx)

we know volume of cylinder=2$\pi$r(r+h)

substituting values we get

=2×3.14×0.25(0.25+7)

=47.3425 $cm^{3}$