If sides A and B of a triangle have lengths of 2 and 7 respectively, and the angle between them is (pi)/8, then what is the area of the triangle?

1 Answer
Jim G.
Mar 22, 2016

≈ 2.679 square units

Explanation:

Given a triangle with 2 sides and the angle between them known , as in this question then we can use the following formula.

area = 1/2ab sintheta

where a and b are the 2 sides and theta ," the angle between them "

here a = 2 , b = 7 and theta = pi/8

rArr" area " = 1/2xx2xx7xxsin(pi/8) ≈ 2.679" square units "

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