Question

The perimeter of isosceles triangle is 40 cm find the length of each side

Answer 1

Answer:

Let x= length of congruent sides and y = length of base.

1. Perimeter=40 cm= 2x+y

2. 3y=4x or y=4/3 x

3. 2x+ 4/3 x=10x/3=40 x=12 cm

4. Two congruent sides are 12 cm each and base = 16 cm.

Step-by-step explanation:

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