Question

Length of equal sides of an isosceles triangle is 3 by 2 times its base.Its perimeter is 40 cm.Find length of equal sides.

Answer 1

Step-by-step explanation:

LET a be length of sides and x is the base of isoceles triangle

FIRST GIVEN DATA IS VERY IMPORTANT TO READ IN A QUESTION

GIVEN

a=3x/2

perimeter = 40 cm

2a+x=40

2(3x/2)+x=40

3x+x=40

4x=40

x=10

so length =3(10)/2=15cm