Acute angle

What is acute angle:

Example 1: Is there is a chance for a triangle to have more than 1 obtuse angle?

Solution:

Step 1: Let the angles of the triangle be L, M and N. Let L be the obtuse angle.

Step 2: The sum of all angles in any triangle is 180º. L + M + N = 180º.

If L > 90º then M + N must be less than 90º. Therefore, M and N must be acute angles.

Answer: No, triangle can have maximum one obtuse angle only.

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Linear formula

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