Answer:
b
Step-by-step explanation:
b is the right answer
it is
sure
Answer:
total ground and wall angle is 90°
beam angle with ground= 51
beam angle with wall =39
because total angle=angle with ground + angle with wall
angle with wall=total angle-angle with ground
angle with wall= 90-51=39
It would be i guess 40 and 60 percent
I took a screen shot to mark the dots I hope this helps
Answer:
Step-by-step explanation:
