Question

In triangleABC angle A is four times to angle B and angle C is five times to angle B.find three angles?. ​

Answer 1

Answer:

First of all this is not hindi

Explanation:

Let angle b be x

so angle a is 4×x = 4x

c=5×x=5x

so x+4x+5x=180°

10x=180° x= 18°

b=18°

a=x×4=18×4=72°

c=x×5=18×5=90°

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