Question

A 14cm long electic pipe has external and internal radii , respectively as 5 cm and 3 cm . Find the volume of the electric pipe.

Answer 1

Answer:

Step-by-step explanation:

H=14cm

R=5cm               r=3cm

volume of pipe =volume (bigger cylinder-smaller cylinder)

                           =πR²h-πr²h

                           =πh(R²-r²)

                            22/7*14(25-9)

                             =22*2*16

                             =22*32

                              =704cm³.

Answer 2

volume of electric pipe=

$\pi \: r ^{2} \: h$

5-3 =2cm

22/7*2*2*14

$22 \times 8 = 176$

ans=volume of pipe =

$176cm ^{3}$