Question 1159244: A trapezoid has a shorter base length of 14, an acute base angle of 72°, and a height of 8. What is the area of the isosceles trapezoid? Answer by Edwin McCravy(20054) (Show Source):
The right triangles on each side are congruent.
The area of each triangle =
So the area of the two triangles = 2(10.39743928) = 20.79486056
The area of the rectangle between the two triangles =
(base of rectangle)∙h = 14∙8 = 112
Total area of trapezoid = 20.79486056 + 112 = 132.7948606.
Edwin
