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The question asks which terms correctly describe a triangle with two 45° angles. Let's break it down:

- **Isosceles (A)**: A triangle with two 45° angles will have two equal angles, meaning it is also an **isosceles** triangle. This option is correct.
  
- **Right (B)**: Since two angles are 45°, the third angle must be 90° (because the sum of angles in a triangle is 180°). Therefore, this is a **right triangle**. This option is correct.
  
- **Equilateral (C)**: An equilateral triangle has all angles equal to 60°, so this is incorrect.
  
- **Obtuse (D)**: An obtuse triangle has one angle greater than 90°, which is not the case here. This is incorrect.
  
- **Equiangular (E)**: An equiangular triangle has all angles equal. Since two angles are 45° and one is 90°, this is incorrect.
  
- **Scalene (F)**: A scalene triangle has no equal sides or angles. Since this triangle has two equal angles, it is not scalene. This is incorrect.

So, the correct options are:
- **A. Isosceles**
- **B. Right**

Would you like further explanation or have any questions?

Here are 5 related questions:
1. What is the sum of the angles in any triangle?
2. Can a triangle be both isosceles and scalene?
3. How can you calculate the third angle of a triangle if you know two angles?
4. What is the definition of an equilateral triangle?
5. What distinguishes a right triangle from an obtuse triangle?

**Tip**: In a right triangle, the other two angles must sum to 90°.

Which of the following words correctly describe a triangle with two 45° angles? Check all that apply.

Understand the characteristics of a triangle with two 45° angles. Learn why this triangle is classified as isosceles and right based on its angle properties. Suitable for students in Grades 8-10.

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