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Question

A square and an equilateral triangle have equal perimeter. If the diagonal of the square is122 then the area of the triangle is:

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Solution

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4a=3b [given]
Diagonal of square = 122
area of triangle = ?
a2+a2=(122)2 [ Pythagoras theroem]
2a2=12×12×2
a2=12×12×22
a=12
b=43×12=16
area = 34a2
34×16×16
643


1115082_1200804_ans_17c0a879536041e284a69d43b30e6b0a.jpeg

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