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Identify the type of triangle—acute, right, or obtuse—based on the given images.

Worksheet titled "Triangles" with four triangles, each labeled with options: acute, right, obtuse. Students circle the correct type of triangle shown.

Worksheet titled "Triangles" with four triangles, each labeled with options: acute, right, obtuse. Students circle the correct type of triangle shown.

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Show Answer Key & Explanations Step-by-step solution for: Triangles | Worksheets | Triangle worksheet, Fun math worksheets ...
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Let's solve this step by step. The task is to identify the correct type of triangle (acute, right, or obtuse) for each of the six triangles shown in the image.

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🔍 Definitions:


- Acute triangle: All three angles are less than 90°.
- Right triangle: One angle is exactly 90° (a right angle).
- Obtuse triangle: One angle is greater than 90°.

We'll go through each triangle one by one.

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🔹 Top Left Triangle (Red)


- It has a small square at one corner — this symbol indicates a right angle (90°).
- So, this is a right triangle.

✔ Answer: Right

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🔹 Top Right Triangle (Green)


- All angles appear to be less than 90°.
- No right angle symbol, and no angle looks larger than 90°.
- This is an acute triangle.

✔ Answer: Acute

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🔹 Middle Left Triangle (Pink)


- One angle looks wider than 90° (greater than a right angle).
- That means it's an obtuse triangle.

✔ Answer: Obtuse

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🔹 Middle Right Triangle (Blue)


- This triangle appears very narrow, with one angle clearly greater than 90°.
- Again, this is an obtuse triangle.

✔ Answer: Obtuse

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🔹 Bottom Left Triangle (Green with square)


- There’s a right angle symbol (square) at the corner.
- So, this is a right triangle.

✔ Answer: Right

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🔹 Bottom Right Triangle (Blue)


- All angles look less than 90°.
- No right angle or wide angle.
- This is an acute triangle.

✔ Answer: Acute

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✔ Final Answers:



| Triangle | Type |
|--------|------------|
| Top Left | Right |
| Top Right | Acute |
| Middle Left | Obtuse |
| Middle Right | Obtuse |
| Bottom Left | Right |
| Bottom Right | Acute |

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📌 Summary:


You should circle:
- Right for top-left and bottom-left
- Acute for top-right and bottom-right
- Obtuse for middle-left and middle-right

This completes the task!
Parent Tip: Review the logic above to help your child master the concept of types of triangle worksheet.
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