Question

The angles of a triangle are 3x,2x+60° and 5x+40° find the value of X

Answer 1

sum of angels of a triangle should be 180°
hence :
3x+2x+60°+5x+40°= 180
10x+100°=180°
10x= 180°-100°
10x= 80
x= 80/10
x= 4
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Answer 2

heya !

Given ,

The three angles of triangle are ->

3x,2x+60,5x+40

As we know , sum of the three sides of a triangle = 180°

so ,

3x+2x+60+5x+40=180
10x+100=180
10x=180-100
10x=80
x= 80/10
x= 8

Therefore the value of x = 8

Substitute 8 in place of x

First angle = 3x =3(8) =24°
Second angle=2x+60=2(8)+60=76°
Third angle =5x+40=5(8)+40=80°

Hope this helps you !

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