@NeslihanKarassu 170 - the rays are parallel. If you extend the horizontal line to the left, the complementary angle is 100 degrees. That’s also the angle next to the 90 deg. That leaves those two totaling 190 degrees. 360 degrees minus 190 = 170.
@PmtStats You can lose a perfect game. Major League Baseball games can be officially forfeited under Official Rule 7.03 due to team misconduct, refusal to play, or fan behavior that makes the field unsafe. So pitch a perfect game and then forfeit under this rule.