PROBLEM WORK / EXPLANATION ANSWER 1) What is the sum of the interior angles of a 1) decagon? 2) What is the sum of the exterior angles of a 2) 13-gon? 3) What is the measure of one interior angle 3) of a regular nonagon? 4) How many sides does a polygon have if the 4) sum of its interior angles is 1,080". 5) Find the measure of the missing angle, x. 5) 134 86 120 X 6) Find x. 6) 3x *+12" x+31" x-3 2x7) In parallelogram SNOW, ST = 6, NW = 4, m20SW = 36', m25NW = 58, and meNTS = 80. edges N a) Find So. Find NT. c) Find maNWS. d) Find mysow. 8) Find the value of x and y that would make 8) the quadrilateral a parallelogram. 10x 10y 100 (11x -8) 9) Determine what type of quadrilateral 9 ) ABCD is given the coordinates: A(1, -1), B(7, 1), C(8, -2), D(2, -4). Show work and justify your reasoning