The angle of the triangle is proportional to the numbers 1,2,3,4 Find all the angles.

Since we are given the ratio of four numbers, then either there is a typo in the task or it is not a triangle, but a quadrangle.

Let’s say a triangle is given and its angles are 1: 2: 3.

To solve the problem, we will compose and solve the equation.

Let us denote the coefficient of similarity as x and write down the degree measures of angles as x °, 2x °, 3x °.

The angles of a triangle add up to 180 °.

Let’s make the equation:

x + 2x + 3x = 180;

We give similar ones on the left side of the equation:

6x = 180;

x = 30 ° smaller angle, 2 * 30 = 60 °, 3 * 30 = 90 °.