Volume of cone is 1212cm.cu.and its height is 24cm. Find thesurface ar

1.	Volume of cone is 1212cm.cu.and its height is 24cm. Find thesurface area of the cone.
Answer» volume of cone = 1/3 pi×r² × h (1212 × 3)/24 = r² r² = 151.5 r = √(151.5) r = 12.3 So, Surface area of cone pi × r ( r + √ h² + r²) 3.14 × 12.3 ( 12.3 + √(576 + 151.5)) 3.14 × 12.3 ( 12.3 + 26.9) 38.622 × ( 39.2) 1,513.12

Volume of cone is 1212cm.cu.and its height is 24cm. Find thesurface area of the cone.

Answer»

volume of cone = 1/3 pi×r² × h

(1212 × 3)/24 = r²

r² = 151.5

r = √(151.5)

r = 12.3

So, Surface area of cone

pi × r ( r + √ h² + r²)

3.14 × 12.3 ( 12.3 + √(576 + 151.5))

3.14 × 12.3 ( 12.3 + 26.9)

38.622 × ( 39.2)

1,513.12