Share
A solid cone of height 12cm and radius 9cm is recast into a solid sphere. Calculate the surface area of the sphere
Question
A solid cone of height 12cm and radius 9cm is recast into a solid sphere. Calculate the surface area of the sphere
in progress
0
Mathematics
3 years
2021-09-03T18:43:05+00:00
2021-09-03T18:43:05+00:00 2 Answers
32 views
0
Answers ( )
Answer:
1017.8
Step-by-step explanation:
this is the formula 4πr2
hope this helps: )
Answer:
Step-by-step explanation:
Volume of cone = π9²⋅12/3 = 324π cm³
volume of sphere = 4πr³/3 = 324π
r = ∛243
surface area of sphere = 4πr² ≈ 155.8π