the curved surface area of a right circular cone is 12320cm square if the radius of its base is 56cm,find its height
Answers
Answered by
16
CSA of cone =12320
πrl=12320
= 22/7×56×l=12320
= l =12320× 7/ 22×56
l=70
to fine height
h=√(l)2-(r)2
=√ (70)2-(56)2
=√4900-3136
=√1764
=42cm
I think this is you answer... you're looking for
πrl=12320
= 22/7×56×l=12320
= l =12320× 7/ 22×56
l=70
to fine height
h=√(l)2-(r)2
=√ (70)2-(56)2
=√4900-3136
=√1764
=42cm
I think this is you answer... you're looking for
Similar questions