Question

10) The angles of a triangle are in the ratio 2:3:4. Find the measure of angles.​

Answer 1

let the common factor be x;

therefore the angles are 2x, 3x, 4x

by angle sum property;

2x+3x+4x=180

9x=180

x=20

angles are:

40, 60 and 80

hope it helps!

Answer 2

Answer:

The angles of a triangle are in the ratio... So firstly we let it.. 2x and 3x ans 4x..

So sum of angle of triangle is 180 degree..

$2x + 3x + 4x = 180degree \\ 9x = 180degree \\ x = 180 \div 9 degree\\ x = 20degree$

2x =2 into 20 =40degree

3x =3 into 20=60degree

4x =4into 20=80degree

And we have proof that

Sum of angle of triangle is 180 degree (40+60+80)degree =180 degree...

Hope it helps..