The rule (x, y)→(−x, y) maps △ABCto △A′B′C′. Which statement correctly describes the relationship between △ABCand △A′B′C′?

The triangles are congruent because △A′B′C′ is a reflection of △ABC , and a reflection is a rigid motion.

The triangles are congruent because △A′B′C′ is a rotation of △ABC, and a rotation is a rigid motion.

The triangles are not congruent because △A′B′C′ is a translation of △ABC, and a translation is not a rigid motion.

The triangles are not congruent because △A′B′C′ is a reflection of △ABC, and a reflection is not a rigid motion.

the answer is a. at the equator

a and c

c is 100% but i am confused in a

as we know our atmosphere or air have different levels. every level has other gasses, and every gas has another permeability. when the light comes from lower permeability to higher permeability, it changes its direction. so that means that when the light comes from the moon to the earth, it changes it's direction many more times. it basically means that the shape of the light part of the moon is changed on the earth.

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