Question

SOMEONE PLS HELP ME WITH THIS ASAP

The diagram shows a circle with a
circunference of 88 cm and a sector of a circle.

Khairul uses the circle and the sector
to form a right cone with the height of 15 cm Calculate the volume, in cm of the cone formed.

`use \: \pi = (22)/(7)`
​

Answer 1

Let's solve for the radius.

r = C / 2π = 88 / (2 * 22/7) = 14

Volume of a cone = 1/3 * πr²h

= 1/3 * 22/7 * 14² * 15

= 3080 cm³