Saved Bookmarks
| 1. |
A cone is formed from a circle of radius 10 cm with a 90° sector removed. Find the Volume of the cone |
|
Answer» Answer: When a sector of radius R=21 cm & aperture angle θ=90∘=π/2 is folded to form curved surface of a right circular CONE then the area of curved surface of cone becomes equal to the area of sector hence, the total surface area of cone including inside & OUTSIDE curved surfaces formed by sector =2(12θR2) =2(12π2(21)2) =12π(441) =12×227×441 =693 cm2 Step-by-step explanation: Hope it helps you Step-by-step explanation: |
|