The diagram below illustrates the law of reflection.

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.

Then angle A + angle B = 90 degrees. We can say angles A and B are complementary. Supplementary Angles - Two angles whose measures add up to 180 degrees. Supplementary angles can be placed so that they form a straight line.

The measure of angle B equals the measure of angle C. Explanation: When a ray of light falls on a smooth polished surface and the light ray bounces back, it is called the reflection of light

Explanation:

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float.

archimedes' principle

denser than water sinks in water.

denser than mercury would sink in it