Math, asked by deepikashree39, 8 months ago

Find the value of a,b,c​

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Answers

Answered by sharvesh8260
2
A= b = c =
Is the answer please give rating
Answered by Divyaballakuraya
0

Answer:

a = 20°

b = 130°

c =50°

Step-by-step explanation:

NOTE :

  • Sum of all the angles of triangle = 180°
  • sum of angles on the straight line = 180°
  • In the given question there arethree triangles.
  • ADC, ABD and ABC

In triangle ADC

Angle DAC + angle ACD + angle ADC = 180

=> 60 + 70 + c = 180

=> 130 + c = 180

=> c = 180 - 130 = 50°

Line BDC

Angle BDA + angle ADC = 180

=> b + 50 = 180

=> b = 180 - 50 = 130°

In triangle ABD

Angle ABD + angle BAD + angle ADB = 180

=> a + 30 + b = 180

=> a + 30 + 130 = 180

=> a + 160 = 180

=> a = 180 - 160 = 20°

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