The third angle is greater than 90 degrees, hence the triangle is an obtuse triangle
Classification of triangles
A triangle is a 2-dimensional figure that has 3 sides and angles. The types of triangles that we have to include:
- equilateral triangle
- right triangle
- acute triangle
- obtuse triangle
For an obtuse triangle, one of the angles is greater tham 90degrees.
Find the third angle
Let the unknown angle be "x", hence;
x + 63 + 22 = 180
x + 85 = 180
x = 180 - 85
x = 95 degrees
Since the third angle is greater than 90 degrees, hence the triangle is an obtuse triangle
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