NIMCET 2013 Question Paper with solutions

Question : 36 of 120

Marks: +1, -0

The equation of the base of an equilateral triangle is x+y = 2 and the vertex is (2. -1). The length of the side of the triangle is :

Solution:

Equation of base is

x+y=2

Vertex is

(2,-1).

Length of perpendicular

=|{2-1-2}/√2|=1/√2

Side of the triangle is

h/{\sin B}={1{/}√2}/{√3{/}2}=√{2/3}

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