A sector of angle 1080 is cut from a circle of radius 20 cm. It is folded to form a cone. Calculate: (a) The curved surface area...

      

A sector of angle 1080 is cut from a circle of radius 20 cm. It is folded to form a cone.
Calculate:
(a) The curved surface area of the cone.
(b) The base radius of the cone.
(c) The vertical height of the cone.
(d) If 12 cm of the cone is chopped off to form a frustrum as shown below.
fig23131120191404.png
Calculate the volume of the frustum formed.

  

Answers


Kavungya
fig24131120191405.png
Kavungya answered the question on November 13, 2019 at 11:08


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