How to start this question

asked Sep 8, 2018 73.1k views

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In big triangle: it is a Isosceles triangle and : 180^-50^=130^
130/2=65^
M+n=65
In the small Isosceles triangle:
180^-90^=90^
90/2=45^=n
m=20^

RRStoyanov answered Sep 13, 2018

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