Question

Given that and are straight lines, find the values of the unknowns in each of the following figures.

Answer 1

Answer:

Step-by-step explanation:

32 + 4a+84=180(straight angle)

= 116 + 4a= 180

= 4a = 180-116

=4a = 64 (ans)

angle AOC= angle AOE+EOC

                  = 32+64

                  = 96

angle BOC=angle AOC(vertically opposite angles)

2b=96

hence 4a=64 and 2b=96.