Question

The volume of a right circular cylinder is 9856 cm cube if the radius of the base is 14 cm find the height of the cone

Answer 1

volume of cylinder=πr^2h
9856cm^3=22/7×14×14×h cm^2
9856cm^2 /22×28 cm^2 =h
16cm=h

Answer 2

Answer:

Given:

r=

2

28

=14cm

(i)Let height =h

⇒Volume =9856=

3

1

πr

2

h

9856=

3

1

×

7

22

×14×14×h

⇒h=48cm

(ii)⇒Slant height =

r

2

+h

2

=

14

2

+48

2

=

196+2340

=50cm

(iii)⇒Curved Surface Area =πrl=

7

22

×14×50cm

2

=22004cm