Question

Diameter of the base of a cone is 10.5cm and slant height is 10cm. find CSA of a cone

​

Answer 1

Step-by-step explanation:

diameter(d) = 10.5cm

radius(r) = diameter/2

r = 10.5/2

r = 5.25cm

height = 10cm

CSA=πrl

=22×5.25×10/7

=165 cm²

CSA=165cm²

hope it help you out.....☺️

Answer 2

Answer:

given ,

diameter of the base(d) =10.5cm

radius = d/2

=10.5/2= 5.25cm

slant height (l)= 10cm

we know that CSA of a cone = πrl

22/7 × 525/100 × 10

= 165 cm^2

therefore CSA of the cone is 165cm^2.

hope it helps!!..