Letbe three rays such thatis between . If BOC + COA = 180, then prove that A, O, B are collinear, that is, they lie on the same straight line.
Please Explain it More Breifly !
Letbe three rays such thatis between . If BOC + COA = 180, then prove that A, O, B are collinear, that is, they lie on the same straight line.
Please Explain it More Breifly !