13 In the given figure, DE || BC. Find the value of.x + 1+ 3 – InterviewSolution

1.

13 In the given figure, DE || BC. Find the value of.x + 1+ 3

Answer»

= Triangle ABC is similar to triangle ADE. Comparing their sides,

= x+1 / x-1 = x+3/x

= x (x+1) = (x+3) (x-1)

= x^2 + x = x^2 - x + 3x - 3

= x + x - 3 x = - 3

= x = 3

= x = -3.

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