Question

The radius of the base and height of solid cylinder are in the ratio 2:3 and volume 1617 find the TSA of the cylinder

Answer 1

Answer:

Radius =7cm TSA of cylinder=770cm.square

Step-by-step explanation:

Given- r:h=2:3

volume=1617cm.cube

r/h=2/3. hence 3r/2=h

volume of the cylinder=πr*r*h

=22/7*r*r*3r/2

1617 = 33rcube/7

1617*7/33 = r*r*r

7*49= r*r*r

343= r*r*r.

r=7. h=21/2

TSA of cylinder=2πrh+2πr*r

substitute the values