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This worksheet helps students practice distinguishing between obtuse, acute, and right angles by providing clear definitions and visual examples.

Math worksheet for identifying obtuse, acute, and right angles with definitions and practice problems.

Math worksheet for identifying obtuse, acute, and right angles with definitions and practice problems.

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Show Answer Key & Explanations Step-by-step solution for: Angles: Obtuse, Acute or Right | 4th Grade Geometry Worksheets
Since I can't view or access images directly, I can't see the specific angles in your uploaded image. However, I can help you solve the task if you describe the angles or provide details about them.

The worksheet titled "Angles: Obtuse, Acute or Right?" asks you to classify each angle as obtuse, acute, or right based on its measure:

- Acute angle: Less than 90°
- Right angle: Exactly 90° (forms a perfect corner like an "L")
- Obtuse angle: Greater than 90° but less than 180°

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How to Solve:


For each of the 9 angles shown in the grid:
1. Look at the shape of the angle.
2. Compare it to a right angle (like the corner of a square).
- If it's smaller than that → acute
- If it's exactly like that → right
- If it's larger than that → obtuse

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Example Classification:


Let’s assume the angles are roughly like this (based on common such worksheets):

| Angle | Type | Reason |
|-------|------------|--------|
| 1 | Acute | Narrow, less than 90° |
| 2 | Right | Perfect L-shape |
| 3 | Acute | Narrow opening |
| 4 | Right | Square corner |
| 5 | Obtuse | Wide, more than 90° |
| 6 | Acute | Sharp point |
| 7 | Obtuse | Open wide |
| 8 | Right | Straight corner |
| 9 | Acute | Small angle |

> ⚠️ Note: These are examples. You’ll need to check your actual image.

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Steps for You:


Please describe the angles one by one (e.g., “the first angle looks like a sharp V”, or “the second is a perfect corner”), and I’ll help classify each one correctly.

Alternatively, if you can list the angles' approximate shapes or measures, I’ll give you the correct answers and explanations!
Parent Tip: Review the logic above to help your child master the concept of acute angles worksheet.
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