An isosceles trapezoid has base angles equal to 45 and bases of lengths 6 and 12. Find the area of the trapezoid.

Answer 1

h = (B1 - B2) / 2 = (12 - 6)/2 = 3.

A = (B1+B2)h / 2 = (12+6)3 / 2 = 27.