Angles are everywhere around us! An angle is formed when two lines or rays meet at a common endpoint, called the vertex. Think of a clock: the hands form an angle! We measure angles in degrees. A small angle is called acute, a right angle is exactly 90 degrees, an obtuse angle is bigger than 90 degrees but less than 180 degrees, and a straight angle is exactly 180 degrees.
This worksheet will help you practice identifying different types of angles. Get ready to become an angle expert!
Match the terms with their definitions:
| Term | Definition |
|---|---|
| 1. Acute Angle | A. An angle that measures exactly 90 degrees. |
| 2. Obtuse Angle | B. The point where two lines or rays meet to form an angle. |
| 3. Right Angle | C. An angle that measures greater than 90 degrees but less than 180 degrees. |
| 4. Vertex | D. An angle that measures less than 90 degrees. |
| 5. Straight Angle | E. An angle that measures exactly 180 degrees. |
Complete the sentences using the words in the box. (vertex, degrees, angle, right, obtuse)
Look around your classroom or home. Can you find examples of acute, obtuse, and right angles? Describe where you found them.
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