The two angles of a triangle are 970 and 430. How many degrees is the third angle of this triangle?

From the condition, we know that the two angles of the triangle are equal to 97 ° and 43 °. In order to find how many degrees the third angle of this triangle is, we first of all have to remember the theorem on the sum of the angles of a triangle.

The triangle sum theorem says that the sum of the angles of a triangle is 180 °.

Let’s denote the unknown angle with the variable x.

Now let’s compose and solve the equation:

97 ° + 43 ° + x = 180 °;

x = 180 ° – 97 ° – 43 °;

x = 40 ° third corner of the triangle.

Answer: 40 ° is the third corner of the triangle.