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I need a bit help i don’t really get it

I need a bit help i don’t really get it-example-1

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Answer:

Value of
x is $15$ degrees and measure of a vertical angle is $105$°

Explanation:

These are vertically opposite angles which are congruent and hence equal.

Thus,


x+90=7x\\</p><p>\implies 90=6x\\</p><p>\implies x=(90)/(6)=(30)/(2)=15^o

Find the measure of a vertical angle by putting the value of $x$ as $15$

User Vertika
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