Sorting Triangles by Sides and Angles: Key Details

Read about classifying triangles, then answer questions about the key details.

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Triangles can be classified based on their sides and angles.

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Triangles can be classified based on their sides and angles. There are three types based on sides: equilateral (all sides are equal), isosceles (two sides are equal), and scalene (no sides are equal). Based on angles, triangles can be acute (all angles are less than 90 degrees), right (one angle is exactly 90 degrees), or obtuse (one angle is more than 90 degrees).

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For example, an isosceles triangle with two sides measuring 5 cm and one side measuring 3 cm can also be an acute triangle if all its angles are less than 90 degrees. Understanding these classifications helps in solving problems and identifying triangles in real life.

Question 1

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What type of triangle has all sides equal?

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Question 2

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What is a triangle called if one of its angles is exactly 90 degrees?

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Sorting Triangles by Sides and Angles: Key Details

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