Question

the height of a cone is 16cm and base radius 12cm.find the CSA and TSA of the cone.take pie has 3.14

Answer 1

l = √(h)² + √(r)²
l = √(16)² + √(12)²
l= √256+√144
l=20

csa= πrl
 3.14 × 12 × 20
=753

tsa=πrl +πr2

3.14×12×20+ 3.14×12×12
753+452.16
1205.16