Question

A semi-circular sheet of metal of diameter 28cm is bent to form an open conical cup. Find the capacity of the cup. ​

Answer 1

Answer:

Step-by-step explanation:Circumference =πr.

Diameter of circular sheet =28cm.

∴ Radius of circular sheet =228=14cm.

Circumference of circular sheet =14π

Slant height of cup (l)= Radius of circular sheet =14cm.

Circumference of the base of cone = circumference of circular sheet =14π

∴2πr=14.

⇒r=7cm