What is the slope of a line that is perpendicular to the line shown on the graph? a)-2 b)-1/2 c)1/2 d)2

Two streets intersect at a 30- degree angle. at the intersection, the are four crosswalks formed that are the same length. what type of quadrilateral is formed by the crosswalks?

How do i do this? i don’t understand

Which part of a 2-column proof is the hypothesis of the conjecture? a) given b) reasons c) prove d) statements ! i think it's b but i'm not quite