area of base of a cone is 77 cm2 and its height is 6 cm find its volume
Answers
Answered by
6
Area of its base( its a circle )
So, area = Πr2
77= 22/7×r2
r2 = 77×7/22
r2= 49/2
r2= 24.5
r= √24.5
r= 4.94
Volume = 1/3Πr2 h
= 1/3×22/7×495/100×495/100×6
= 11979/140
= 85.56cm3
Similar questions