ANSWER QUICKLY!!!!!
(Also i had to copy what was on my paper to the windows paint tool soo yeah this was the best i could do, and plz forgive me if the picture is small)
first, solve for the missing side of the triangle: a^2+b^2=c^2 100+b^2=144 b^2=44 b=6.63 15-6.63=8.37 8.37*10=83.7 The area of the parallelogram is (1/2(6.63*10))+ (1/2(6.63*10))+83.7 66.3+83.7 The area of the shape is 150 ft^2