Question

a semi circular sheet of paper diameter 28cm is bent into an open conical cup. find the depth and capacity of the cup​

Answer 1

Step-by-step explanation:

d=28

r=28/2=14

so,l=14

πr=22/7×14=44

in cone,2πr=44

44/7r=44

r=7

14^2-7^2=h^2

196-49=h^2

√147=h