Question

find the volume of a right circular cylinder if radius of its base is equals to 7 cm and height is equals to 1.5 decimeter

Answer 1

volume of cylinder
pi × r× r× h
22/7 × 7 ×7 ×15
22×7×15
2310 cu. cm

Answer 2

Solution:

The volume of the right circular cylinder is 2310 cubic centimeters.

Explanation:

We know that the volume of a right circular cylinder is given by

$V=\pi r^2 h$

Now, we have been given that

r = 7 cm

h = 1.5 dm = 15 cm    (Since, 1 decimeter = 10 cm)

On plugging these values in the above mentioned formula for the volume of a right circular cylinder, we get

$V=\frac{22}{7}\cdot7^2 \cdot 15\\\\V=\frac{22}{7}\cdot49 \cdot 15\\\\V=22\cdot7\cdot 15\\\\V=2310 \text{ cm}^3$

Therefore, the volume of the right circular cylinder is 2310 cubic centimeters.