Question

The angle of a triangle are in ratio 1: 2: 3.
Find the measure of three angles​

Answer 1

Let the angles of triangle be x, 2x, 3x

sum of angles of triangle =180

then,

according to question x+2x+3x = 180

x+2x+3x = 180

6x = 180

x= 30

hence three angles are x=30, 2x=30×2=60, 3x= 30×3=90

Answer 2

Answer:

$x + 2x + 3x = 180 \\6x = 180 \\ x = 180 \div 6 = 30 \\ 2x = 2 \times 30 = 60 \\ 3x = 3 \times 30 = 90$

the three angle is 30,60,90