Problem: A triangle and a trapezoid are equal in area. They also have the same altitude. If the base of the triangle is 18 inches, the median of the trapezoid is
Answer Choices:
A. 36 inches
B. 9 inches
C. 18 inches
D. not enough information
E. none of these answers
Solution:
A=21βbh=21βh(b1β+b2β);β΄b1β+b2β=b=18
β΄m=21β(b1β+b2β)=9