Math, asked by TBNRtathya, 1 day ago

Question : In figure (1) and (I), Find the values of a, b and c. I 30/60 70° a B b/c D (i) 55° 60° 40° R S (ü). I can't post figure it's a triangle with the degRees I have given​

Answers

Answered by singhravishankar
4

Answer:

In triangle ADC,

⇒ b=60 o +70 o

⇒ b = 130 o

Now, in triangle ABD,

⇒ a+b+30 o  = 180 o

⇒ a = 180 o −30 o  - 130 o

⇒ a = 20 o

Also,

∠ADC=∠BAD+∠ABD  .... Exterior angle property

⇒ c=30 o +a

⇒ c=30 o +20 o

⇒ c=50 o

Therefore,

a=20 o , b=130 0 , c=50 o

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