1 and 3 is 100° bc 80+80 = 160 n 360-180 is 200 but since u hv two angles u hv to divide it in half. for the second problem 3 is 65 bc 180-115, 1 is 90° 2 is 115 bc 180+ 65 is 245 n then 360-245 is 115. for the last problem 1 is 47 bc 180-133 n then u hv corresponding angles, 2 is 133 n then 3 is 47
