Question

Plz give correct answer.....fast.....I will mark as BRAINLIEST..... plz......

Answer 1

Side of equilateral triangle= 10.2 cm

Perimeter of an equilateral triangle = 3*10.2

                                                         = 30.6 cm

Given in the question:

Perimeter of the equilateral triangle= Perimeter of the isosceles triangle

Perimeter of the isosceles triangle = 30.6 cm

1st side of the isosceles triangle = 5.6 cm

2nd side= 5.6 cm cause 2 sides r equal and in the question it is given that 5.6 is one of the equal side.

Let the side be x,

Perimeter= s+s+s

30.6=5.6+5.6+x

30.6= 11.2+x

30.6-11.2 = x

19.4=x

3rd side= 19.4cm