Identify the Triangles based on Angles — Printable Math Worksheet - Free Printable

To identify each triangle, we look at its angles:

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

Let’s go through each triangle one by one:

1. First triangle (top left): Looks like all angles are sharp — no right angle mark, and none seem wide. → Acute

2. Second triangle (top right): Has a small square in the corner → that means 90°. → Right

3. Third triangle (second row, left): The top angle looks very wide — definitely more than 90°. → Obtuse

4. Fourth triangle (second row, right): All angles look sharp, no right angle mark. → Acute

5. Fifth triangle (third row, left): Has a small square → 90°. → Right

6. Sixth triangle (third row, right): One angle looks wider than 90° — especially the bottom-left one. → Obtuse

7. Seventh triangle (bottom row, left): Small triangle, but all angles look sharp. → Acute

8. Eighth triangle (bottom row, right): The top angle looks wide — more than 90°. → Obtuse

Now let’s list them in order from top to bottom, left to right:

1. Acute
2. Right
3. Obtuse
4. Acute
5. Right
6. Obtuse
7. Acute
8. Obtuse

Final Answer:
Acute, Right, Obtuse, Acute, Right, Obtuse, Acute, Obtuse