Question

find the curved surface area of a right circular cone of radius 5 cm and slant height 14​

Answer 1

Answer:

Step-by-step explanation:

We know that Curved surface area of a cone = π rl

where r = radius of the base

l = slant height of cone

therefore , CSA = π  x 5 x 14

= 22/7 x 5 x 14 cm^2

= 22 x 2 x 5 cm^2

= 220 cm^2

Answer 2

$\sf \bold{ Given : }$

• Radius of a right circular cone is 5 cm.

• Slant height of a circular cone is 14 cm.

$\sf \bold{To \: find \: out : }$

Find the Curved surface area of a right circular cone?

$\sf \bold{Formula \: used : }$

★Curved surface area of cone = πrl

$\sf \bold{Solution : }$

We know that the Curved surface area of a right circular cone of radius r and slant height l .

$\sf {Curved \: surface \: area = \pi \: rl }$

Substituting the values of radius and slant height.

$: \implies \: \frac{22}{7} \times 5 \times 14$

$: \implies22 \times 5 \times 2$

$: \implies \: 44 \times 5$

$: \implies \: 220 \: cm {}^{2}$

Hence, Curved surface area of given cone is 220 cm².