Question

Find the value of a , b , c and d in figure :-

Give me a proper answer

with full explanation

If a answer is correct I will surely mark you a BRAINLIEST answer

Give me a proper answer
Give me A proper answer
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Answer 1

Answer:

here is your answer

Step-by-step explanation:

I hope it is appropriate and adequate

Answer 2

Step-by-step explanation:

In ∆OCD

The sum of the angles of a ∆ = 180°

Since two angles are given

Angle a = 180 - (110 + 30)

= 180 - 140

= 40°

AC is a straight line

Thus, angle AOD + angle DOC = 180°

=> angle AOD = 180 - 110

= 70°

In ∆ DOA

angle AOD + angle b + angle ADO = 180°

=> angle b = 180 - (70+70)

= 180 - 140

= 40°

angle DOC = angle AOB (vertically opposite angles)

In ∆ AOB

angle a + angle c + angle AOB = 180°

angle c = 180 - (110+40)

= 180 - 150

= 30°

AB || DC

BD is the transversal

angle d = angle ADB (alternate angles)

angle d = 70°