Which statements describe the relationship of the angles in the triangle? Check all that apply. The sum of the three angles is 90°.
The sum of the angles in the triangle is 180°.
The three angles are adjacent and form a straight angle.
The third angle is 45°.
There is a pair of congruent angles.

Aye bruh i don’t know this but someone else who smarter than us will answer this

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.