Giving brainliest! Please answer all questions and no links!

Find the sum of the following series. round to the nearest hundredth if necessary.

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?

Anna is constructing a line segment that is congruent to another segment ab. for the construction, which tool should be used to mesure segment ab