Question

The two sides of a triangle are 3 cm
and 4 cm and its perimeter is 12 cm
Area of the triangle is​

Answer 1

Answer:

6 sq cm

Step-by-step explanation:

let the sides be A and B and C

A=3, B=4

A+B+C = 12

3+4+C= 12

7+ C = 12

C = 5

s = P/2 where P is perimeter

s = 6

by herons formula,

√s(s-A)(s-B)(s-C)

√6(6-3)(6-4)(6-5)

√6×3×2

√6×6

area is equal to 6 sq cm