Question

find tsa and csa of cone Given l=12,r=7
ans me fast step by step​

Answer 1

Answer:

• The total surface area of cone, TSA = 418 sq. unit
• The curved surface area of the cone, CSA = 264 sq. unit.

Step-by-step explanation:

Given:

Length (l) = 12

radius (r) = 7

Find:

TSA and CSA

Formula:

The total surface area of cone, TSA = πr (r + l)

The curved surface area of the cone, CSA = πrl

First find the total surface area of the cone

TSA = πr (r + l)

= 22/7 × 7 (12 + 7)

= 22 × 19

= 418 sq. unit

Now find the curved surface area of the cone

 CSA = πrl

= 22/7 × 7 × 12

= 22 × 12

=264 sq. unit

So, TSA = 418 and CSA = 264 sq. unit.