1.

in a triangle abc ,angle c=3,angle b=2(angle a+angleb) then angles are 20,40,100digree.true and false​

Answer»

Step-by-step EXPLANATION:

Let 3

1)

3

2<(A+B)=x

sum of the three angles in a triangle is 180degree

x/2-x/3+x/3+x=180[from(1),(2),(3)]

(3x-2x+2x+6x)/6=180

9x/6=180

x=180*6/9

x=20*6

x=120

therefore

A= x/2-x/3=120/2-120/3=60-40=20

B=x/3=120/3=40

C=x=120



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