๐ Topic Summary
Right angles are super important in math and in the world all around us! A right angle is an angle that is exactly 90 degrees. Think of the corner of a square, a rectangle, or even the corner of a book โ those are all right angles! They're often marked with a small square in the corner to show they are exactly 90 degrees. Identifying right angles helps us understand shapes and their properties better.
In this worksheet, we'll explore what right angles are, practice identifying them in different shapes, and learn some cool facts about them. Get ready to become a right angle expert!
๐งฎ Part A: Vocabulary
Match the term with its correct definition. Draw a line connecting the matching pairs.
| Term |
Definition |
| 1. Right Angle |
a. An angle that is less than 90 degrees. |
| 2. 90 Degrees |
b. A tool used to measure angles. |
| 3. Acute Angle |
c. The exact measurement of a right angle. |
| 4. Obtuse Angle |
d. An angle that is greater than 90 degrees but less than 180 degrees. |
| 5. Protractor |
e. An angle that measures exactly 90 degrees. |
โ๏ธ Part B: Fill in the Blanks
Read the paragraph and fill in the missing words.
A ________ angle is an angle that measures exactly ________ degrees. We often use a small ________ to mark a right angle in a shape. Right angles are found in many common ________, such as squares and ________.
๐ค Part C: Critical Thinking
Imagine you're building a rectangular table. Why is it important to make sure the corners are right angles?