Question

The volume of a right circular cone is 924cm3
. If its height is 18 cm, then the area of its base is

Answer 1

Step-by-step explanation:

volume=πr^2×h/3

924=base area×6

924/6=base area

154.333333334=base area

Answer 2

The area of base is 154 sq.cm.

Step-by-step explanation:

Height of cone = 18 cm

Volume of cone = $\frac{1}{3} \pi r^2 h = \frac{1}{3} \times \frac{22}{7} \times r^2 \times 18$

We are given that The volume of a right circular cone is 924cm3

So,$\frac{1}{3} \times \frac{22}{7} \times r^2 \times 18 =924$

$r=\sqrt{\frac{924 \times 3 \times 7}{22 \times 18}}$

r=7

Area of base = $\pi r^2 = \frac{22}{7} \times 7^2 = 154 cm^2$

Hence The area of base is 154 sq.cm.

#Learn more:

The volume of a right circular cone is 9856cm. if the radius of the base is 14cm then find the height of the cone? ​

https://brainly.in/question/15349653