Question

find the volume of a cone if the radius of its base is 1.5cm and its perpendicular height is 5cm

Answer 1

v = 1/3 π r ^2 h

v = 2.25 * π 5 / 3

v = 0.75* 5 * π

v = 3.75 π cm^3

Hope it helepd you...

Answer 2

Answer:

$:\implies \sf Volume \: of \: cone = \dfrac{1}{3} \pi {r}^{2} h$

$:\implies \sf Volume \: of \: cone = \dfrac{1}{3} \times \dfrac{22}{7} \times (1.5)^{2} \times 5$

$:\implies \sf Volume \: of \: cone = \dfrac{1}{3} \times \dfrac{22}{7} \times 1.5 \times 1.5 \times 5$

$:\implies \sf Volume \: of \: cone = \dfrac{22}{7} \times 0.5 \times 1.5 \times 5$

$:\implies \sf Volume \: of \: cone = \dfrac{22}{7} \times 3.75$

$:\implies \underline{ \boxed{\sf Volume \: of \: cone = 11.785 \: cm^{3}}}$

$\therefore\:\underline{\textsf{The volume of cone is \textbf{11.785}} \: \sf {cm}^{3}}.$