Checking and securing understanding of similar triangles

12 questions

1. What is the sum of internal angles of a triangle?
2. Which of these is a property of an isosceles triangle?
3. Which of these is a property of a right angled triangle?
4. What are the sizes of the internal angles of a regular triangle?
5. What type of triangle is this?
6. Match the angle types
7. Which of the following statements is true for these triangles?
8. For this pair of triangles, can you determine whether they are similar without using side lengths?
9. Would a triangle ABC with sides AB = 8cm, BC = 6cm, AC = 10cm be similar to the one shown in the diagram?
10. Which of these statements accurately describes mathematical similarity in shapes?
11. Which statement is true?
12. What is the value of e?

License: OGL