Help fast plez 10 points

Parallel lines are coplanar lines

Perpendicular lines are two coplanar lines that intersect at a right angle (90º).

Distance around an unmarked circle can NEVER be measured

So:

True

True

Never True

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!