Question

Find the volume of a cone if it's radius of base is 4.5cm and it's perpendicular height is 14cm.

Answer 1

Given :

• Radius of base = 4.5 cm
• Height of cone = 14 cm

To Find :

• Volume of the cone

Solution

Formula to find volume of cone is

$\Large \boxed{\bf Volume_{cone} = \frac{1}{3} \pi {r}^{2} h} \\ \\ \implies \bf \frac{1}{3} \times \frac{22}{7} \times {(4.5)}^{2} \times 14 \\ \\\bf \implies \frac{1}{ \cancel3} \times \frac{22}{ \cancel7} \times \cancel{20.25} \times \cancel{14} \\ \\ \bf \implies22 \times 6.75 \times 2 \\ \\ \bf \implies 44 \times 6.75 \\\\ \bf \implies297 \\ \\ \Large \underline {\bf volume \: of \: cone \: is \: 297 \: {cm}^{3} }$

Answer 2

✯✯ QUESTION ✯✯

Find the volume of a cone if it's radius of base is 4.5cm and it's perpendicular height is 14cm.

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✰✰ ANSWER ✰✰

$⇢\textbf{Radius=4.5cm}$

$⇢\textbf{Height=14cm}$

☛$\large{\boxed{\bold{\bold{\red{\sf{Volume\:of\:Cone=\dfrac{1}{3}{πr}^{2}h}}}}}}$

➜Putting Values : -

$⇢\dfrac{1}{3}×\dfrac{22}{7}×4.5×4.5×14$

$⇢22×6.75×2$

☛$\large{\boxed{\boxed{\bold{\green{\sf{Volume\:of\:Cone={297cm}^{2}}}}}}}$

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• C.S.A of Cone= πrl

• T.S.A of Cone=πrl+πr²