Using the following figure, identify relationship of the angles or sum of the angles?

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1 Answer
Zor Shekhtman
Jul 3, 2016

/_1, /_3, /_4, /_5 are acute (<90^o).
/_6 is right (=90^o).
/_2 is obtuse (>90^o).
Sum of all of them is full angle (=360^o).
(continue below)

Explanation:

/_1+/_6+/_5 is straight angle (=180^o).
Since /_6=90^o, /_1+/_5 is right angle (=90^o).
Angles /_3 and /_4 seems to be congruent (equal in value).
/_2+/_3+/_4 is straight angle (=180^o).

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