Question

Two laser beams originating from the same source pass through a glass cylinder parallel to its base. The arc intercepted by the lasers closest to the source measures 60. The arc intercepted by the lasers on the other side of the cylinder measures 80. What is the measure of the angle formed by the two laser beams ?


A. )10

B. )20

C. )30

D. (40

Answer 1

The measure of the angle formed by the two laser beams is 20°

What is an angle?

An angle is formed when two or more lines intersect. Acute angles are angles less than 90 degrees, obtuse angles are greater than 90 degrees while right angles are 90 degrees.

The arc intercepted by the lasers closest to the source measures 60. The arc intercepted by the lasers on the other side of the cylinder measures 80. Hence:

The measure of the angle formed by the two laser beams = 80 - 60 = 20°

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