Question

the area of a base of a right circular cylinder is 15400cm sq and its volume is 924000cm sq . find the area of curved surface​

Answer 1

Step-by-step explanation:

If the radius is r

so,

πr×r=15400

or, r×r=15400×7/22

or, r×r=7×7

or, √r×r=√70×70

or, r=70

so,radius is 70cm

so,I thought the hight is h

so,π×70×70×h=924000

or, h=924000×7/22×70×70

or, h=60

so, The hight is 60cm

so the area of curv surface is

π×70×60 cm sq

=22/7×70×60 cm sq

=13200 cm sq