Angle 1 is 100 degrees. What is the measure of angle 3?

Angle 3 is also 100

Step-by-step explanation:

They are vertical angles and vertical angles are always congruent.

what is all that apply?

i think it's ф or x=6,-6

step-by-step explanation:

-x^2=-36

x^2=-36

ф

or

if you mean by : -(x^2)=-36

it'll be: x^2=36

x=6,x=-6

hope it'll ! have a good day!

you for asking!