One corner of the triangle is 3 times larger than the other and the other 15 degrees larger

The angles of a triangle add up to 180 ° degrees. Let’s take the first angle as X, then the second angle is 3X, the third angle is X + 15. Let’s compose and solve the equation:

X + 3X + X + 15 = 180;

5X + 15 = 180;

5X = 180 – 15;

5X = 165;

X = 33 ° – degrees first angle.

3X = 3 * 33 = 99 ° – second angle degrees.

X + 15 = 33 + 15 = 48 ° – degrees of the third angle.

Let’s check the solution to the equation:

33 + 99 + 48 = 180;

180 = 180.

Answer: 33 ° degrees first, 99 ° degrees second and 48 ° degrees third.