Question

perimeter of an isosceles triangle is 40 cm . Its each equal side is 4 cm less than the third side . use l as the length of third side​

Answer 1

Step-by-step explanation:

Perimeter = sum of all the sides

4 + 4 + l =40

8 + l = 40

l=40-8

l = 32

Answer 2

Answer:

4+4+l=40

8+l=40

l=40-8

l=32

32-4=28

28+28+32= 88cm

i think this is the answer