Alaser beam strikes a flat mirror, forming an angle with the mirror. the beam is deflected at the same angle. the angle between the entering and exiting beams measures 120 degrees more than three times the measure of the angle formed between the beam and the mirror.

its 60

4 x 12 = 48

3 x 4 = 12

48 + 12 = 60

yeeeet

answer: list the statements and i will follow up!

step-by-step explanation:

step-by-step explanation: given equation a = h(b 1+b 2)

also we are given values of a, h and b 1 as :

a = 16, h = 4, and b 1 = 3.

in order to solve it for b 2, we need to plug the given values of   a, h and b 1 .

therefore, plugging values of   a, h and b 1   in given equation, we get

16 = 4( 3 + b 2)

first dividing both sides by 4, we get

4 = 3 + b 2

subtracting 3 from both sides, we get

4 -3 = 3 -3 + b 2

1 = b 2.