Two corners of an isosceles triangle are at (4 ,2 ) and (5 ,7 ). If the triangle's area is 3 , what are the lengths of the triangle's sides?

1 Answer
Dec 28, 2017

Measure of the three sides are 5.099, 3.4696, 3.4696

Explanation:

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Length of the base a = sqrt((5-4)^2 + (7-2)^2) = 5.099

Given area = 3 = (1/2) * a * h

:. h = 6 / (5.099 /2) = 2.3534

Length of one of the equal sides of the isosceles triangle is
b = sqrt((a/2)^2 + h^2) = sqrt((5.099/2)^2 + (2.3534)^2) = 3.4696

Lengths of the isosceles triangle are 5.099, 3.4696, 3.4696