Triangles are shapes with three sides and three angles. They come in different forms! Some have all sides the same length (equilateral), some have two sides the same (isosceles), and some have no sides the same (scalene). Also, triangles can be right-angled (containing a 90-degree angle), acute-angled (all angles less than 90 degrees), or obtuse-angled (containing an angle greater than 90 degrees). This worksheet will help you learn the names and properties of different types of triangles.
Match the terms with their definitions:
| Term | Definition |
|---|---|
| 1. Equilateral Triangle | a. A triangle with one angle equal to 90 degrees |
| 2. Isosceles Triangle | b. A triangle with all three sides equal |
| 3. Scalene Triangle | c. A triangle with two sides equal |
| 4. Right Triangle | d. A triangle where all angles are less than 90 degrees |
| 5. Acute Triangle | e. A triangle with no sides equal |
Fill in the missing words in the following paragraph:
A __________ triangle has all three sides equal. An __________ triangle has two sides equal. A __________ triangle has no sides equal. A right triangle has one angle that measures __________ degrees.
Can a triangle have more than one right angle? Explain why or why not.
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