Question

in the figure below is a straight line calculate measure of angle COD​

Answer 1

6o is the correct answee

Answer 2

hey friends!

 since it is a straight line, the total angle is 180°.

 ie., x+20°+2x-20°+60°=180°

                 3x+60°=180°

                       3x=180°-60°

                        3x=120°

                         x=120°÷3

                         x=40°

substituting  x in the OCD eqn,

           2x-20°=2(40°)-20°

                       =80°-20°

          angle OCD=60°

hope it helps!

cheers..........