# The triangle has an ID of 30 ° inside and one outside 40 °. Find the rest of the inside corners of the triangle.

December 27, 2020 | education

| The solution of the problem:

In the specification, a triangle is given, for which one inner corner and one outer corner is known. It is known that the sum of the outer and inner angles of a triangle is 180 degrees.

1. Find what the other inner corner of the triangle is equal to.

180-40 = 140 degrees.

The sum of all the interior angles of any triangle is 180 degrees.

2. Find what is the third inner corner of the triangle.

180-30-140 = 10 degrees.

Answer: The second angle of the triangle is 140 degrees, the third angle is 10 degrees.

One of the components of a person's success in our time is receiving modern high-quality education, mastering the knowledge, skills and abilities necessary for life in society. A person today needs to study almost all his life, mastering everything new and new, acquiring the necessary professional qualities.