Question

the measure of angle of a triangle ABC is given below 6 angle A =3 B= 4 C find the measire of angle of equilateral triangle

Answer 1

60 degree is answer of question

Answer 2

let A=3B=4C=x
So, A=x,B=x/3,c=x/4
as A+B+C=180
x+(x/3)+(x/4)=180
take LCM
12x+4x+3x=180[angle sum property]
19x=180
x=180/19
A=x=180/19 degree
B=x/3=180/(19*3)=60/19 degree
C=x/4=180/(19*4)=45/19 degree
Also each angle of equilateral triangle is 60 degrees

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