Question

find the curved surface area of a cone whose base is 6cm and slant height is 12cm


plz find it as step by step and answer to my question

fastly..​

Answer 1

Answer:

226.08cm² is the required answer

Step-by-step explanation:

According to the Question

It is given that

• Slant Height ,l = 12cm
• Radius ,r = 6cm

We have to calculate the curved surface area of the cone.

As we know that curved surface area of cone is calculated by

• CSA of Cone = πrl

where,

π = 3.14

r denote radius

l denote slant height

Substitute the value we get

➾ CSA of Cone = 3.14 × 6 × 12

➾ CSA of Cone = 3.14 × 72

➾ CSA of Cone = 226.08 cm²

• Hence, the curved surface area of the cone is 226.08 cm².

Answer 2

Given :-

Radius = 6 cm

Slant height = 12 cm

To Find :-

CSA

Solution :-

We know that

$\boxed{\bf CSA = \pi rl}$

↠ CSA = π × 6 × 12

↠ CSA = π × 72

↠ CSA = 72π

∴ CSA is 72 π cm²