A painting is shaped like a trapezoid and has an area of A square inches. The dimensions of the painting
are shown in the diagram.
12 in.
p in.
nin.
p in.
20 in.
Which equation can be used to determine A, the area of the painting, in square inches?
B
A = 20n
A = (12 +20)n
A = (12 + 20)p
A = 12 +20 + 2p