Determine the measure of the angle someone ! : d

A triangle”: angle measure is 180, and a right angle is shown, which is 90 degrees. Add 90 and 25, and then subtract 180 and that value

The right angle is 90 degrees the other angle must be 65

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.