A triangle has two corners with angles of # pi / 4 # and # pi / 4 #. If one side of the triangle has a length of #1 #, what is the largest possible area of the triangle?

1 Answer
Jan 24, 2018

Largest possible area of the triangle #Delta ABC = (1/2) * 1 * 1 = color (green)(0.5)# sq. units

Explanation:

Three angles are #pi/4, pi/4, (pi-(pi/4 + pi/4)) = pi/2#

It’s an isosceles right triangle with sides in the ratio #1 : 1 : sqrt2#

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To get the largest possible area of the triangle, length ‘1’ should correspond to the smallest angle, viz. #pi/4#

Hence the sides are #1, 1, sqrt2#

Largest possible area of the triangle #Delta ABC = (1/2) * 1 * 1 = color (green)(0.5)# sq. units