The sum of interior angles in a triangle is 180 degrees. If one angle is 50 and another is 60, what is the third angle?

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Multiple Choice

The sum of interior angles in a triangle is 180 degrees. If one angle is 50 and another is 60, what is the third angle?

Explanation:
In a triangle, the interior angles add up to 180 degrees. The third angle is the remainder when you subtract the sum of the other two angles from 180. So, 180 − (50 + 60) = 180 − 110 = 70. That means the third angle is 70 degrees, which makes the total 180. If the third angle were 60, 80, or 90, the total would be 170, 190, or 200 degrees respectively, not 180.

In a triangle, the interior angles add up to 180 degrees. The third angle is the remainder when you subtract the sum of the other two angles from 180. So, 180 − (50 + 60) = 180 − 110 = 70. That means the third angle is 70 degrees, which makes the total 180. If the third angle were 60, 80, or 90, the total would be 170, 190, or 200 degrees respectively, not 180.

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