Question

the angle B of a triangle ABC is to thrice the difference of the other two angle also the ratio of the angle A to the angle C is 5 : 7 find the angles​

Answer 1

Answer:

let the angle be x

angle b = angle c - angle a

so

angle b=7x-5x

b=2x*3

b=6x

now

angle a+b+c

5x+7x+6x=180°

18x=180°

x=180/18

x=10°

now we will take out the answer

5x=5*10=50°

7x=7*10=70°

6x=6*10=60°

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