TODAY IN GEOMETRY… Algebra Review Quiz today! Review Segment Addition Postulate and Congruency ...
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Transcript of TODAY IN GEOMETRY… Algebra Review Quiz today! Review Segment Addition Postulate and Congruency ...
TODAY IN GEOMETRY… Algebra Review Quiz today!
Review Segment Addition Postulate and Congruency
Learning Goal: 1.3 You will find lengths of segments in the coordinate plane
Independent Practice – NO A.T.
1.1-1.3 QUIZ – Friday!
REVIEW: Algebra Review Quiz
1. Subtract
REVIEW: Solve the following equation for x.
2∗ ∗2Multiply
2. Subtract
4∗ ∗4Multiply
Distribute Subtract
Add
Divide
REVIEW: Solve the following equation for x.
REVIEW: Graph the equation
ALGEBRA REVIEW QUIZ You have 20 minutes to complete your quiz Are you prepared? Pencil? Calculator? No notes allowed If you finish early:
Finish any missing assignments. Work on something quietly as the rest of
your fellow classmates complete their quizzes.
NO TALKING. STAY IN YOUR SEATS.
REVIEW: Segment Addition
Postulate
Two parts makes a whole
Substitute given lengths
Subtract
Divide
REVIEW:
G
EF
3 𝑥+3
8 𝑥+2
6 0
PRACTICE:D
AB16𝑥
42
ALL parts makes a whole
Substitute given lengths Combine like terms
Subtract
Divide
Find
C𝑥
PRACTICE:G
EF
6𝑥
1.6 𝑥
Two parts makes a whole
Substitute given lengths Subtract
Divide
A BC
so
MIDPOINT: A point that cuts a segment into two equal pieces.
MIDPOINT EQUATION: Given two points
PRACTICE: M is the midpoint of AC. Find the value of AM if
𝐴 𝐶𝑀
42𝑖𝑛
PRACTICE: M is the midpoint of VW. Find the value of x.
𝑉 𝑊𝑀4 𝑥−1
M is the midpoint so Congruent segmentsequal lengths
Substitute known values Subtract
Add
3 𝑥+3
𝐺 (6 ,3 ) ,𝑀 (8 ,−1)
MG H(6 ,3) (8 ,−1)
+2
-4
(,)
+2
-4
𝐻 (10 ,−5)
PRACTICE: M is the midpoint of GH. Find the missing endpoint.
8+2−1−4
𝐵 (−2 ,5 ) ,𝐶 (6 ,1)
BA C(6 ,1)(−2 ,5)(,)
𝐴(−10 ,9)
PRACTICE: B is the midpoint of AC. Find the missing endpoint.
−2−85+4
-8-8
+4+4
𝐴 (8 ,7 ) ,𝐵(13 ,−2)𝑥1 𝑦1 𝑥2 𝑦2
Midpoint Formula Substitute known values
Simplify
Point is the midpoint for segment AB.
PRACTICE: Find the midpoint of segment AB using the midpoint formula.
𝐶 (−12 ,6 ) ,𝐷(8 ,−4 )𝑥1 𝑦1 𝑥2 𝑦2
Midpoint Formula Substitute known values
Simplify
Point is the midpoint for segment CD.
PRACTICE: Find the midpoint of segment CD using the midpoint formula.
¿ (−2,1)
HOMEWORK #3:
Pg. 19: 5-19, 25-27
REMINDER: turn in your Student Acknowledgment and Agreement Form!
If finished, work on other assignments:
HW #1: Pg. 5: 1, 5, 8-11, 13, 15, 17-21, 27-30, 46HW #2: Pg. 12: 6-16, 21-28, 33, 35