Question

Find the height of the right circular cone of slant height is 25cm and area of its base is 154cm square ​

Answer 1

Answer:

Base area of cone = 154cm

π(r)^2 = 154

22/7×(r)^2 = 154

(r)^2 = (154×7)÷22

r = √(49

r = 7cm

height of right circular cone

h^2 = l^2-r^2

h^2 = (25)^2-(7)^2

h^2 = 625-49

h^2 = 576

h = √(576

h = 24cm