Question

the perimeter of an isosceles triangle is 36 cm .the length of the congruent sides is 7 cm less than twice the length of its base. find the length of the base of the triangle.

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Answer 1

Step-by-step explanation:

let the base be X

then congruent sides be 2x-7

we know , X + 2x-7 + 2X-7 =180

x+4x-14=180

5x-14=180

5x= 180+14

X=194/5