Considering the sum of the internal angles of a triangle, it is found that the measure of angle T is of 17º.
What is the sum of the internal angles of a triangle?
The sum of the internal angles of a triangle is of 180º.
In this problem, the angles are: 90º, 73º and T, hence:
90 + 73 + T = 180
163 + T = 180
T = 17º
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