theonefreshmen
26.02.2021 •
Mathematics
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Ответ:
Considering that the sum of the measures of the internal angles of a triangle is of 180º, the third angle measures 80º.
A triangle is composed by three internal angles, and the sum of their measures is of 180º.
In this problem:
The first two angles have measures of 40º and 60º.The third angle measures x.Since the sum of the measures is of 180º:
The third angle measures 80º.
A similar problem is given at link