Notifications
Clear all
Surface Areas and Volumes
1
Posts
2
Users
0
Likes
490
Views
0
31/07/2021 10:09 am
Topic starter
The height of a cone is 15 cm. If its volume is 1570 cm3, find the diameter of its base. (Use π = 3.14)
1 Answer
0
31/07/2021 10:11 am
Height of the cone, h = 15 cm
Volume of cone = 1570 cm3
Let r be the radius of the cone
As we know,
Volume of cone, V = (1/3) πr2h
(1/3) πr2h = 1570
(1/3) × 3.14 × r2 × 15 = 1570
r2 = 100
r = 10
Radius of the base of cone 10 cm.