1. 200 300 100 200 300 100 200 300 100 200 300 100 200 300 100 Triangle Classification Triangle Values Angle Relationships Pythagorean Theorem Misc.

2. Classify the triangle by its angle measures and side lengths. 40 in 30 in 50 in A. Right Isosceles B. Right Scalene C. Acute Isosceles D. Acute Scalene

3. B – Right Scalene

4. Classify the triangle by its angle measures and side lengths. A. Right Isosceles B. Right Scalene C. Obtuse Isosceles D. Acute Isosceles 110 o

5. C – Obtuse Isosceles

6. What is true about all equilateral triangles? A. It has at least one obtuse angle. B. It has at least one right angle C. All angles measure 60 o. D. It has only one acute angle.

7. C – All angles measure 60 o

8. Which of the following side lengths would make a triangle with the two given sides? A. 3 in. B. 4 in. C. 5 in. D. 6 in. 12 in. 7 in.

9. D – 6 inches

10. A triangular shaped patio has sides of 30 ft., 24 ft. and 20 ft. There is a rocking chair in the corner that has the smallest angle. Which corner has the rocking chair? A. The corner opposite the side that is 30 ft. B. The corner opposite the side that is 24 ft. C. The corner opposite the side that is 20 ft. D. The chair is in the middle of the patio.

11. C – The corner opposite 20 ft. side

12. 85 o 55 o 50 o A B C Arrange the triangle sides below from longest to shortest. A. A, B, C B. B, C, A C. B, A, C D. C, A, B

13. C – B, A, C

14. What is the measure of the missing angle and what is the reason for your conclusion? A. 150 o complementary B. 150 o supplementary C. 60 o complementary D. 60 o supplementary 30 o xoxo

15. C – 60 o Complementary

16. Find the measure of the missing angles. 50 o 70 o aoao bobo A. a = 70 o b = 110 o B. a = 70 o b = 20 o C. a = 60 o b = 30 o D. a = 60 o b = 120 o

17. D – a = 60 o and b = 120 o

18. Find the measure of angle p. 70 o popo A. p = 140 o B. p = 100 o C. p = 40 o D. p = 20 o

19. C – 40 o

20. If a triangle is formed with the given side lengths, which would be a right triangle? A. 5 in, 6 in, and 7 in B. 9 in, 12 in, and 15 in C. 25 in, 30 in, and 25 in D. 12 in, 18 in, and 30 in

21. B – 9 in., 12 in., 15 in.

22. The three squares below form a right triangle. What is the area of the shaded square? A. 5 cm 2 B. 9 cm 2 C. 25 cm 2 D. 16 cm 2 3 cm 4 cm

23. C – 25 cm 2

24. Find the length of the missing side. Round your answer to the nearest whole number. A. 17 cm B. 24 cm C. 144 cm D. 288 cm 12 cm

25. A – 17 cm

26. A. 21 cm B. 15 cm C. 25 cm D. 225 cm 4.

27. B – 15 ft.

28. The Zilker Park Christmas Tree is 155 ft. tall and is made of 39 strands of lights that are 189 ft long. How far from the base of the tree is each strand attached? A. 17 ft B. 88 ft C. 108 ft D. 244 ft 155 ft 189 ft x ft

29. C – 108 ft.

30. Find the side lengths of the triangle below. A. 10, 20 and 20 B. 15, 15 and 20 C. 10, 15 and 15 D. 10, 10 and 20 40 o 4x - 2 2x + 4 4x + 8

31. D – 10, 10, 20