Question

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

Answer 1

Answer:

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

Step-by-step explanation:

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

Thus,

$x+90=7x\\\implies 90=6x\\\implies x=\frac{90}{6}=\frac{30}{2}=15^o$

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