One of the corners of the triangle is 40 degrees, the second is 1.5 times larger. Find the third corner of the triangle.

If one angle of the triangle is 40 degrees, and the second is 1.5 times more, then we find how many degrees the second angle is.

You need to multiply 40 ° by 1.5.

40 ° * 1, 5 = 60 ° (gr.) – 2nd angle.

Find the sum of the degrees of two angles.

40 ° + 60 ° = 100 ° – together the first and second corners.

The sum of all sides of the triangle must be equal to 180 °.

Let’s find what the third angle of the triangle is equal to.

It must be subtracted from 180 ° 100 °.

180 ° – 100 ° = 80 ° – equals the third angle.

Answer: The third corner of the triangle is 80 degrees.