Question

Given that the AOC is straight line. Find the unknown value?

Answer 1

Answer:

2x+5x-9=180(by linear pair)

7x-9=180

7x=180+9

7x=189

x=189/7

x=27°ans

b).

38+x+90=180(linear pair)

128+x=180

x=180-128

x=52 answer