Answer:In Euclidean geometry, a convex quadrilateral with at least one pair of parallel sides is referred to as a trapezium in English outside North America, but as a trapezoid in American and Canadian English
a+b 2h
Step-by-step explanation:
1turn = 360 half a turn is 180
360+180=540
180=(3x+25)+2x. Soooooo X=31