first pic: A = b h where b = 9 + 3 = 12 and h = 6 so A = 12 x 6 = 72 square units
Answer: 72 square units -------------------------------- second pic: Area of trapezoid A = 1/2(b1 + b2) h where b1 = 10, b2 = 8 and h = 4 so A = 1/2(10+8)(4) = 36 square units
