Question

Hello please help me find the answer

Answer 1

angle cba is with linear pair

therefore angle cba = 180°- 80°

= 100°

angle cda = 180 - 100........opp.angle of cbs

= 80°

therefore angle cda = 180 -(3x+50)

100 ° = 180° - 3x - 50°

100° = 130° - 3x

3x = 30°

x = 10°

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Answer 2

Answer:

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Step-by-step explanation:

Angle CBA = (180 -80) degree = 100 degree (Linear pair of angles)

Angle CBA = Angle ADC = 100 degree

Angle D = 180 degree - 100 degree = 80 degree

But Angle D = 3x+ 50 degree

3x+50= 80

3x= 80-50=30

x= 30/3= 10

Therefore x= 10