Determining if a Triangle is Obtuse | Steps and Explanation

Regarding side length, a triangle is an obtuse triangle if …

A triangle is considered as an obtuse triangle if it has one angle that is greater than 90 degrees

A triangle is considered as an obtuse triangle if it has one angle that is greater than 90 degrees. In other words, one angle of the triangle is acute (less than 90 degrees), while the other two angles are both obtuse (greater than 90 degrees).

To determine if a triangle is obtuse, you can follow these steps:
1. Measure the three angles of the triangle using a protractor.
2. Compare the measurements to check if any angle is greater than 90 degrees.
3. If you find one angle that satisfies this condition, then the triangle is an obtuse triangle. If not, it would be classified as either an acute triangle (all angles less than 90 degrees) or a right triangle (one angle is exactly 90 degrees).

For example, let’s say we have a triangle with angle A measuring 70 degrees, angle B measuring 110 degrees, and angle C measuring 60 degrees. Since angle B is greater than 90 degrees, this triangle is an obtuse triangle.

It is important to note that in an obtuse triangle, the sum of the three angles is still 180 degrees, as it is for all triangles.

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