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The diagram below illustrates the law of reflection.

A horizontal line labeled Mirror has an arrow labeled Incoming Light from up and left strike it at a point, and then another arrow arises at that point and goes up and right. A dotted line divides the angle made by the 2 arrows in half. A is the angle from the mirror to Incoming Light. B is the angle from Incoming Light to the dotted line. C is the angle from the dotted line to the second arrow. D is the angle from the second arrow to the Mirror.

According to the law of reflection, which statement must be true?

The measure of angle A equals the measure of angle B.
The measure of angle B equals the measure of angle C.
The measure of angle A equals the measure of angle C.
The measure of angle B equals the measure of angle D.

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Answer:

The measure of angle B equals the measure of angle C.

Explanation:

This is because, angle B represents the angle of incidence of the incoming light and angle C is the angle of reflection of the incoming light. According to the law of reflection, angle of incidence equals angle of reflection. So, the measure of angle B equals the measure of angle C.

Answer:

The measure of angle B equals the measure of angle C.

Explanation:

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