Question

If a triangle has two angles that measure 25 degrees each, what must be the measure of the

third angle?

Answer 1

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Answer 2

Explanation:

Add up the two known angle measurements. All you have to know is that all of the angles in a triangle always add up to 180°. This is true 100% of the time. So, if you know two of the three measurements of the triangle, then you're only missing one piece of the puzzle. The first thing you can do is add up the angle measurements you know. In this example, the two angle measurements you know ...

Subtract this number from 180°. The angles in a triangle add up to 180°. Therefore, the remaining an…