Question

Two straight lines AB and CD cut each other at O. if angle BOD = 63° then find angle BOC.​

Answer 1

One line = 180°

2 line = 360°

one property exist if, they intersect each other

vertically opposite angles are congruent

then you get 2 pair of congruent angle

solving for 1 angle

•°• theta = 180 - 63 = 117° ...linear pair.

•°• angle BOC = 117°