Question

In a triangle ABC , angle A = 2 Angle B and Angle A =one by three angle C,Find the measures all three angles.​

Answer 1

Step-by-step explanation:

We know that in a △, the sum of all the interior angles is 180

 

⇒∠A+∠B+∠C=180  

Also given that,

∠C=3∠B and 3∠B=2∠A+2∠B

∠A=  <B/2

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Substituting values in (1), we get

∠B /2 + <B + 3<B + 180

 

∴∠B=40  

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   ∠A=20  

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   ∠C=120  

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