The missing measures are listed below:
In this question we must determine the measures of the <em>missing</em> angles by both <em>geometric</em> and <em>algebraic</em> means, whose procedure is presented below:
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Given
Alternate internal angles
Complementary angles
Alternate internal angles
Isosceles triangle
Sum of internal angles in a triangle
Supplementary angles
,
Vertical angles
Sum of internal angles in a triangle
Sum of internal angles in a triangle
Sum of internal angles in a triangle/Result
The missing measures are listed below:
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