Name: ______Class: ______
Math 2 – Unit 7 Notes and Homework Packet
Day 1: Basics of Geometry
Segment:Line:
Angle: / Congruent / Congruent Segments
Midpoint / Segment Bisector / Perpendicular Lines
Perpendicular Bisector / Congruent Angles / Angle Bisector
Complementary Angles / Supplementary Angles / Linear Pair
Vertical Angles / Right Angles / Right Triangle
Reflexive Property of Congruence / Transitive Property of Congruence
Draw the given pictures. Label all points.
1. is the midpoint of . / 2. Lines and intersect at point . / 3. bisects.4. One angle has a measure of 50o and another has a measure of xo. The two form a linear pair / 5. Line is perpendicular to , and they intersect at point . Line is also perpendicular to , intersecting at point / 6. andare complementary.
7. bisects / 8. has 2 congruent angles, and / 9. Angles and are vertical angles.
10.and are parallel. Point G is the midpoint of . / 11. One angles has a measure of x + 45o, another has a measure of 2xo, and a 3rd had an angle of x – 1o. All 3 make a linear pair. / 12. is a right triangle, where is a right angle. and are congruent.
Day 2: Parallel Lines and Angle Relationships
Parallel Lines: ______
Transversal: ______
Angle Relationships formed by a Parallel Line and a Transversal
Corresponding Angles______
______ / Alternate Interior Angles
______
______
Alternate Exterior Angles
______
______ / Consecutive Interior Angles
______
______
Practice:
1. 2. 3.
4. 5. 6.
Homework 7.2
Name the Angle Pair Relationships!
Supplementary Angles, Vertical Angles, Alternate Interior Angles, Alternate Exterior Angles, Corresponding Angles, Consecutive Interior Angles, or No Relationship
- Angles 1 and 4: ______
- Angles 1 and 5: ______
- Angles 4 and 5: ______
- Angles 6 and 7: ______
- Angles 5 and 7: ______
- Angles 6 and 8: ______
- Angles 2 and 8: ______
- Angles 2 and 6: ______
Day 3: Angles Relationship Proofs
Vertical Angles are ______
Corresponding Angles are ______
Alternate Interior Angles are ______
Alternate Exterior Angles are ______
Consecutive Angles are ______
Lines l and m are parallel.
1. If , which other anglesare also 34º2. If and , what
is the ?
3. If and , 4. If and , what
what is the ? is the ?
5. If and , 6. If and , what
what is the ? is the ?
Classwork/Homework 7.3
1. 2.
X = ______X = ______
Reason: ______Reason: ______
3. 4.
X = ______X = ______
Reason: ______Reason: ______
5. 6.
X = ______
X = ______Reason: ______
Reason: ______Reason: #2: ______
Day 4: Triangle Sum Theorem
Triangle Sum Theorem: ______
1. 2.
X = ______X = ______
3. 4.
X = ______X = ______
5. 6.
X = ______X = ______, Y = ______, W = ______
7. X = ______
Y = ______
W = ______
Homework 7.4
Use the triangle sum theorem to solve for the missing angles.
1. 2.
______
3. 4.
______
5. 6.
______
7.
______
Day 5: Similar Triangles
Similar Triangles have ______ANGLES and ______SIDES
3 Ways to Prove that 2 Triangles are SIMILAR:
1. ______(AA) - ______
2. ______(SAS) - ______
3. ______(SSS) - ______
1. 2.
Similar: YES NOSimilar: YES NO
Reason: ______Reason: ______
3. 4.
Similar: YES NOSimilar: YES NO
Reason: ______Reason: ______
5. 6.
Similar: YES NOSimilar: YES NO
Reason: ______Reason: ______
7. 8.
Similar: YES NOSimilar: YES NO
Reason: ______Reason: ______
Classwork/Homework 7.5
Determine if the following triangles are similar. If so, give the reason and complete the similarity statement.
1. 2.
Similar: YES NOSimilar: YES NO
Reason: ______Reason: ______
3. 4.
Similar: YES NOSimilar: YES NO
Reason: ______Reason: ______
Day 6: Midsegment of a Triangle
Midsegment of a Triangle: ______
Formula: ______
1. 2.
x = ______x = ______
3. a. DE = 4x – 5 and BC = 3x + 15, then x = ______
b. DE = 6x – 4 and BC = 4x + 8, then x = ______
4. 5.
X = ______X = ______
6. 7.
X = ______X = ______
Classwork/Homework 7.6
Find the missing value using the midsegment theorem.
1. 2.
X = ______X = ______
3. 4.
X = ______X = ______
5. 6.
X = ______X = ______