Question

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

Answer 1

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 $15$