Question

A circlar sheet of radius 36 cm is divided into two sector central angle of one sector is 120 the sector are rolled-up into cone .
(1) what is slant height of the cones?
(2) what is the ratio of the central angles of the sector ?
(3) find the radius of each cone
(4) what is the ratio of their radii?

Answer 1

Answer:

1)slant height = radius of circle = 36 cm

2)ratio of central angle = 1:2