In a proof to show two triangles are congruent if a given is PR ⟂ CK, which of the following statements most likely will be used within the proof? PR and CK are congruent.
PR and CK are similar.
PR and CK form acute angles.
PR and CK form right angles.

the law of definite proportions states samples of a compound will always contain the same proportion of elements by mass. in other words, a given compound will always contain the same elements in the same proportions by mass.the law of multiple proportions states when two elements combine with each other to form more than one compound, then the weights of one element that combine with a fixed weight of the other are in a ratio of small whole numbers.

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