Answer:
area=135
Step-by-step explanation:
Pythagorean theorem: a^2+b^2=c^2
8^2+b^2=17^2
64+b^2=289
b^2=225
b=15
15 is the missing side length
The area is comprised of two triangle (which make one rectangle) and one rectangle (1 unit by 15).
area= bh(of a triangle) + bh(of the middle rectangle
area=8(15)+1(15)
area=135
