CPM Homework Help : CCG Problem 10-91

Multiple Choice: Which expression represents the area of the trapezoid right?

A trapezoid with bases labeled, A, on top, and, B, on bottom, and marked with single arrow. Left side, labeled, c. Bottom left angle, labeled, 30 degrees.

$\frac{c\left(a+b\right)}{4}$

$\frac{c\left(a+b\right)}{2}$

$\frac { b c } { 2 }$

$\frac { a + b + c } { 2 }$

None of these

Answer:

(a)