The question asks which set of angles can form a triangle. To form a triangle, the sum of the three angles must always equal 180°. Let’s check each set of angles:

1. 45°, 65°, 70°: $45 + 65 + 70 = 180° \quad (\text{This forms a triangle.})$

2. 50°, 50°, 50°: $50 + 50 + 50 = 150° \quad (\text{This does not form a triangle.})$

3. 90°, 90°, 90°: $90 + 90 + 90 = 270° \quad (\text{This does not form a triangle.})$

4. 150°, 110°, 100°: $150 + 110 + 100 = 360° \quad (\text{This does not form a triangle.})$

The correct set that forms a triangle is 45°, 65°, 70°.

Would you like a deeper explanation, or have any questions?

Here are 5 related questions:

1. What is the sum of the interior angles of a triangle?
2. Can a triangle have more than one right angle?
3. What is an equilateral triangle, and how do its angles compare?
4. How can you identify if three given angles can form a triangle?
5. What are the different types of triangles based on angles?

Tip: Always remember that the sum of angles in a triangle is 180°, regardless of the triangle's type.