Manuel traveled 4 hours nonstop to mexico, a total of 172 miles. he took a train part of the way, which averaged 50mph, and then took a bus the remaining distance, which averaged 30mph. how long was manuel on the train (in hours)?

step-by-step explanation:

two pairs of adjacent sides are of equal length. this implies that one diagonal divides the kite into congruent triangles, and so the angles between the two pairs of equal sides are equal in measure. it also implies that the diagonals are perpendicular.