1. What do you know about triangles?
Triangles—Quick Quiz
What do you know about triangles?
Let’s find out!
Get READY!!!

2. Match the name with the type of triangle.
1. Equilateral
2. Obtuse
3. Isosceles
4. Right
a b. c. d.

3. 5. A scalene triangle has_____
a. All sides equal
b. All sides unequal
c. Two sides equal

4. 6. The interior angles of a triangle equal______.
a degrees
b degrees
c degrees

5. 7. What’s the measure of the missing angle?
60°

6. 8. What’s the measure of the missing angle?
30°
75°

7. 9. What’s the measure of the missing angle?
40°
20 °

8. 10. What kind of triangle is this?

9. ANSWERS
Check your work.

10. Match the name with the type of triangle.
1. Equilateral—c.
2. Obtuse—b.
3. Isosceles—d.
4. Right—a.
a b. c. d.

11. 5. A scalene triangle has_____
a. All sides equal
b. All sides unequal
c. Two sides equal

12. 6. The interior angles of a triangle equal______.
a degrees
b degrees
c degrees

13. 7. What’s the measure of the missing angle?
60°
60°

14. 8. What’s the measure of the missing angle?
30°
75°
75°

15. 9. What’s the measure of the missing angle?
40°
120°
20 °

16. 10. What kind of triangle is this?
Scalene triangles have NO sides equal.

17. Which one are YOU?
Triangles from 3dUniverse and Caligreal