Notifications
Clear all
Surface Areas and Volumes
1
Posts
2
Users
0
Likes
250
Views
0
28/07/2021 10:07 am
Topic starter
Find the total surface area of a cone, if its slant height is 21 m and diameter of its base is 24 m. (Assume π = 22/7)
1 Answer
0
28/07/2021 10:08 am
Radius of cone, r = 24/2 m
= 12m
Slant height, l = 21 m
Total Surface area of the cone = πr(l + r)
Total Surface area of the cone
= (22/7) × 12 × (21 + 12) m2
= 1244.57m2