Question

the equal sides of the isosceles triangle are 12cm, and the perimeter is 30cm, the area of this triangle is​

Answer 1

Answer:

Area of triangle =√s(s-a)(s-b)(s-c)

Here,s is the semi-perimeter,

and a,b,c are the sides of the triangle

Given triangle is isosceles

In isosceles triangle,two sides are equal

so,a=b=12cm

and perimeter=30cm

semi-perimeter=s=perimeter/2

s=30/2

s=15cm