Question

the volume of the cylinder whose radius is equal to 3.5 cm and height is equal to 40 cm

Answer 1

$radius \: = r = 3.5cm \\ height = h = 40cm \\ volume \: of \: cylinder = \pi {r}^{2} h \\ = \frac{22}{7} \times {3.5}^{2} \times 40 \: {cm}^{3} \\ = \frac{10780}{7} {cm}^{3} \\ = 2156 {cm}^{3}$

Answer 2

v o c = 22/7 *

3.5,‌3.5* 40 =1540