The answer is number 1. Because 12/10 =20/18 is a true statement. None of the others are true
Numbers 2, 4 and 5 are the correct answers.
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Y=1.5 at the midpoint of GH. To do this you add the y values of the endpoints together and divide by two ----> 5-2= 3 ----> 3/2= 1.5
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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
I looked it up, and it said false.