Question

Find the curved surface area of right circular cone of height 16 cm and base radius 12 Cm

Answer 1

Answer

754.28

Step-by-step

Explanation

Given,

Height=16cm

Radius=12 cm

l= 20 cm

Curved surface area of cone= pie.r.l

=22/7×12×20

=5280/7

=754.28cm^2

Answer 2

Answer:

The formula for finding Csa is Pie r l

first by Pythagoreas theorum we will find l

l^2=(16)^2+(12)^2

l^2=256+144

l=√400

l=20

CSA=π×12×20

CSA = 5280/7

CSA=754.2cm2

CSA=754cm2(rounding of)