It is Figures A,B, and C. Answer D is not a polygon.
The solutions to the system are -11.3 and 11.3.
The length of one leg of the sun shade is 11.3 feet.
Steps:
graph y=1/2 x^2
graph y=64
zoom out.
find the points of intersection.
done.
Answer:
56 decreases to 11 because 45 was subtracted from it.
56-45=11