Question

The two equal sides of an isosceles triangle are (3x-7) and (5x+8) and the thierd side is 2x find the value of x.

Answer 1

Step-by-step explanation:

In isosceles triangle two sides are equal,

So,

3x-1=2x+2

x=3

Perimeter=sum of all sides

=3x-1+2x+2+2x

=7x+1

Substituting value of x

Perimeter=7(3)+1

=21+1

=22

Thus x=3 and Perimeter of a triangle=22 square units

Answer 2

Answ

step-by-step explanation:

as two sides are equal

than

3x-7=5x+8

so

2x=15

x=15\2

primeter=sum of all sides

=(3x-7)+(5x+8)+(2x)

=10x+1

putting value of x

=10(15\2)+1

=76

value of x=15\2

primeter=76