Question

Find volume of cylinder whose radius and height are 7cm and 30cm?​

Answer 1

Answer:

747.32cm2

Step-by-step explanation:

Given

Radius =7cm 

Height =39cm.h

Volume =πr2h

=722×7×7×30

=154×30

=4620cm3

Total surface area of the cylinder =2πr(r+h)

=2×3.14×7×(7+10)

=43.96×17

=747.32cm2.

Answer 2

Answer:

r=7 cm

h= 30 cm

volume=

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

= 22/7 × 7×7 × 30

= 22×7 ×30

= 4620 cm. cube