Question

if the circumference at the base of the right circular cone and the slant height are 120π centimetre and 10 centimetre respectively then the curved surface area of the cone is equal to _____​

Answer 1

We have,

circumference =120π cm, slant height(l)=10 cm

⇒2πr=120π

⇒2r=120

⇒r=60 cm

We know that the curved surface area of the cone

=πrl

So,

=π×60×10

=600π cm2

Answer 2

Answer:

600 π cm^2

Step-by-step explanation:

circumference =120π cm, slant height(l)=10 cm

⇒2πr=120π

⇒2r=120

⇒r=60 cm

We know that the curved surface area of the cone

=πrl

So,

=π×60×10

=600π cm

2

Hence, this is the answer