Question

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

Answer 1

Answer:

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Answer 2

ANSWER:

• Volume of cone = 11.78 cm²

GIVEN:

• Radius = 1.5 cm
• Height = 5 cm

TO FIND:

• Volume of cone

SOLUTION:

Formula:

Volume of cone is:

$= \frac{1}{3} \pi \: r {}^{2} h$

Here :

• Radius = 1.5 cm
• Height = 5 cm

Now putting the values we get:

$= \dfrac{1}{3} \times \pi \: (1.5) {}^{2} \times 5 \\ \\ = \frac{1}{3} \times \frac{22}{7} \times 2.25 \times 5 \\ \\ = \frac{247.5}{21} \\ \\ = 11.78 \: cm {}^{2} (approx)$

NOTE:

some important formulas:

• Volume of cylinder = πr²h
• Volume of cone = πr²h/3
• Volume of Cuboid = (length)(Breadth)(Height)
• Volume of cube = (Edge)³