Question

plz tell me answer fast plz plz
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Answer 1

Answer:

3x+45=180

3x=135

x=45

Step-by-step explanation:

Answer 2

Answer:

Angle AOC = x°

Angle COD = 65°

Angle BOD = (2x - 20)°

Sum of these three angles is = 180° (because they lie on a straight line)

So,

x° + 65° + (2x - 20)° = 180°

=> x° + 2x° + 65° - 20° = 180°

=> 3x° + 45° = 180°

=> 3x° = 180° - 45°

=> 3x° = 135°

=> x° = 135°/3

=> x° = 45°

Angle AOC = 45°

Angle BOD = (2x - 20)°

= 2(45°) - 20°

= 90° - 20°

= 70°

Ans. 45°, 70°

Hope it helps.