Question

2. If angle AOC = 3x +5 and
angle BOC = 2x - 25 are the
adjacent angles and forming a
linear pair, then find the value
of x.​

Answer 1

Answer:

AOC + BOC = 180°

3x+5 + 2x - 25 = 180

5x - 20 = 180

5x = 180 + 20

x = 200/5

x = 40

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Answer 2

Answer:

Step-by-step explanation:

∠AOC + ∠BOC = 180 -----( angles in linear pair )

3x+5 + 2x-25 = 180

5x - 20 = 180

5x = 180 +20

5x = 200

x = 200/5

x =40

∴∠AOC = 3x+5

             = 3( 40) +5

            =  120+ 5

∠AOC  = 125°

∠BOC = 2X- 25

           = 2(40) -25

           = 80- 25

∠ BOC  = 55°