https://file.aiquickdraw.com/mathbot/file/1729832549393zr3oxtlx.jpg

Let's go through the questions based on the image you provided.

1. **a) Which angle is a right angle?**
   - A right angle measures **90°**, typically indicated by a small square in the corner. From the image, **Angle 2** clearly shows a right angle.
   - **Answer: B) Angle 2**

2. **b) Identify the obtuse angle:**
   - An obtuse angle measures **greater than 90° but less than 180°**. In the diagram, **Angle 4** appears to be obtuse as it opens wider than a right angle.
   - **Answer: D) Angle 4**

3. **c) What is the measurement of a straight angle?**
   - A straight angle is formed when two rays point in opposite directions, creating a line, and it measures **180°**.
   - **Answer: C) 180°**

Would you like further details or have any questions?

Here are some additional related questions for practice:
1. How do you distinguish between an acute and an obtuse angle?
2. What is the difference between a right angle and a reflex angle?
3. Can an angle be both acute and right at the same time?
4. How can you visually identify a straight angle on a diagram?
5. What is the sum of angles in a triangle?

**Tip:** When identifying angles, a small square symbol often indicates a right angle. Keep this in mind when analyzing diagrams.

Which angle is a right angle? Identify the obtuse angle. What is the measurement of a straight angle?

Learn how to identify right angles, obtuse angles, and straight angles with step-by-step guidance. This problem covers key concepts in geometry such as angle measurements and properties. Suitable for students in Grades 5-7.

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