Question

If two angles of triangle measures 90∘ and 30∘, the third angle is equal to: a. 90∘ b. 30∘ c. 60∘ d. 120∘

Answer 1

In a triangle, the sum of the angles is always 180 degrees. Given two angles of 90 degrees and 30 degrees, the third angle is 60 degrees.

Step-by-step explanation:

The subject of your question is Geometry, specifically focusing on the properties of a triangle. In a triangle, the sum of the measures of all three angles is always 180 degrees. Given that two of the angles of your triangle are 90 degrees and 30 degrees, we can calculate the measure of the third angle. If we add up 90 degrees and 30 degrees, we get a sum of 120 degrees. Subtracting this sum from the total 180 degrees in a triangle gives us the measure of the third angle. Therefore, 180 degrees - 120 degrees equals to 60 degrees. So, the third angle of this triangle, is equal to 60° .

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