The angle with sides 5, 9 and 10 is an obtuse triangle

This is a type of angle in which the angles are less than 180 degrees but less than 180 degrees.

In this case, we can easily determine if it’s an obtuse angle.

Assuming the longest side is 10 units, the sum of it’s two other sides must be greater than it’s longest side which is supposedly the hypothenuse.

5 + 9 = 14

14 > 10

This indicates that the triangle is an obtuse triangle.

Learn more on obtuse triangle here;

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