Question

Q8) Find y and ZDOA in the adjoining figure

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please answer my question

Answer 1

Answer:

Y = 10 and angle DOA = 75

Step-by-step explanation:

AOB is a line

AngleAOD + AngleCOD + AngleBOC = 180

2y + 55 + y + 3y + 65 = 180

6y + 120 = 180

6y = 180 - 120

y = 60/6

y = 10

Now,

Angle DOA = 2y + 55

= 2(10) + 55

= 20 + 55

= 75

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