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Question: 1 / 400

In a triangle with angles measuring 30° and 60°, what is the measure of the third angle?

60°

70°

80°

90°

In any triangle, the sum of the interior angles always equals 180 degrees. In this scenario, you are given two angles measuring 30 degrees and 60 degrees. To find the measure of the third angle, you need to subtract the sum of the two given angles from 180 degrees.

First, calculate the sum of the two angles:

30° + 60° = 90°

Next, subtract this sum from 180° to find the measure of the third angle:

180° - 90° = 90°

Thus, the measure of the third angle is 90 degrees. This means that the triangle is a right triangle, as it contains a 90-degree angle, which corresponds to one of the fundamental properties of triangle angle measures.

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