Hi my name is nadia so i felt like answering this lol. this question is missing a lot of things. it doesn’t look like i can answer it.
Answer:
a: 130
b: 130
c: 50
Step-by-step explanation:
a straight line has an angle of 180, so those two angles are going to add up to 180. and opposite angles are equivalent
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
The number could be any multiple of nine that ends in 4 or 9, like 9, 54, 99, 144, etc.
