If two angles of a triangle measure 30 degrees and 60 degrees, what is the measure of the third angle?Choices:- 30 degrees 60 degrees 90 degrees 120 degree
Question
If two angles of a triangle measure 30 degrees and 60 degrees, what is the measure of the third angle?Choices:- 30 degrees 60 degrees 90 degrees 120 degree
Solution
The sum of the angles in a triangle is always 180 degrees. If one angle is 30 degrees and another is 60 degrees, you can find the third angle by subtracting the sum of the known angles from 180.
Step 1: Add the two known angles together. 30 + 60 = 90 degrees.
Step 2: Subtract the sum of the known angles from 180. 180 - 90 = 90 degrees.
So, the measure of the third angle is 90 degrees.
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