Download Unit II Review Student Answer Key Secondary Math

Unit II Review Student Answer Key
Secondary Math II
1. Corresponding angles must be
congruent, and corresponding sides
must be proportional.
2. x = 28
3. 𝑥 =
10
7
4. a) 𝑥 =
b) 𝑦 =
36
5
15
2
5. Distance: 6√5 ≈ 13.4
Midpoint: (2, 9)
6. Distance: 2√13 ≈ 7.2
Midpoint: (-3, 4)
7. Complement = 55°
Supplement = 145°
8. Complement = 41°
Supplement = 131°
9. Complement = 8°
Supplement = 98°
10. Complement = 77°
Supplement = 167°
11. Complement – none (-30°?)
Supplement = 60°
12. y – 5 = -3(x + 1) OR y = -3x + 2
13. Right
14. Acute
15. Obtuse
16. x = 7
17. x = 30
18. x = 25, A = 35°
19. x = 22
20. DF is shortest because it is opposite
the smallest angle.
16. 6√19
17. 4√5
18. 40√2
21. a) Linear pair
b) Alternate Interior Angles
c) Alternate Exterior Angles
d) Same-side Interior Angles
e) Vertical Angles
22. If the triangles are similar, AC = 35
23. m e = 62°
24. h = 22 meters
25. Do not do!
26. Do not do!
27.
A
A
S
𝐵≅ 𝐷
𝐵𝐶𝐴 ≅ 𝐷𝐶𝐸
AC ≅ 𝐸𝐶
∆AC𝐵 ≅ ∆EC𝐷
Given
Vertical Angles
Given
AAS
28. a) x = 16
b) The right triangles are congruent,
which makes finding x possible.
However, congruent triangle
theorems were not covered in this
unit. This problem did not need to
be done.
Answer: x = 9