RRB Group D Model Paper 4 with solutions

Question : 57 of 100

Marks: +1, -0

For what value of 'x' is the triangle with length of sides '4x', '3x + 5' and '

x^2

– 5' equilateral?

Solution:

(1) For a triangle to be equilateral, all sides are equal.
So, 4x = 3x + 5 =

x^2

– 5
Therefore, x = 5

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