Q. An isosceles triangle has a height of 12.5m and two equal angles that measure 55∘. Determine the area of the triangle.
Calculate base length: Calculate the length of the base using trigonometry.Since the triangle is isosceles, the height bisects the base, creating two right triangles. Each has a base angle of 55 degrees and a height of 12.5m. Using the tangent function:2base=tan(55°)heightbase=2×(tan(55°)12.5)base≈2×(1.428112.5)≈17.47m
Calculate triangle area: Calculate the area of the triangle.Area = 0.5×base×heightArea = 0.5×17.47m×12.5mArea ≈0.5×218.375≈109.19 square meters