Question

A jokers cap in the of right circular cone of base radius 7cm and height 24cm.find the area of the sheet required to make 10 such caps

Answer 1

Radius of cap=7 cm
Height of the cap=24 cm
Slant height l= √r*2+h*2
=√7*2+24*2
= √49+576
= √625=25
l=25
lateral surface areas of cap =cone=πrl
22/7 into 7 into 25
550cm*2
Area of sheet required to make 10 caps =10 into 550
= 5500cm*2
Hope dis helps u.. Tq u..