TODAY IN GEOMETRY…

Stats on Algebra Review Quiz Warm Up: Geometry Notation Review Calculating MidpointLearning Goal: 1.3 Calculating

distance between two points Independent Practice – NO A.T.Return Algebra Review Quiz1.1-1.3 QUIZ-Friday

HOW DID YOU “SHAPE” UP??Results for ALL of my Geometry classes:

GRADE NUMBER OF STUDENTS WHO TOOK THE ALG. REVIEW QUIZ (14 pts.)

1ST PERIOD 3RD PERIOD 5TH PERIOD 6TH PERIOD TOTAL

A 14 11 13 15 53B 5 9 6 4 24C 1 4 4 2 11D 5 1 0 1 7F 4 3 0 4 11

29 28 23 26 105

1.

2.

3.

WARM UP: Match the correct notation to each of the figures.

𝐴

𝐵

𝐷 𝐸

𝐹

𝐺

a. h.

b. i.

c. j.

d. k.

e. l.

f. m.

g. n.

C

K

i

REVIEW: Midpoint Formula

Use the midpoint formula Substitute known values

Add

Simplify

REVIEW: Find the midpoint between A and B.

REVIEW: Find the midpoint between A and B.

(−6 ,4 )

(7 ,−2)

𝐴

𝐵

Midpoint Formula:

𝑀

(,)7+4MA B

(3 ,−2) (7 ,2)

+4

+4

+4

+4

𝑩(𝟏𝟏 ,𝟔)

PRACTICE: Given an endpoint and the midpoint , find the second endpoint.

2+4

DISTANCE: The length between two points. Distance can never be negative!

EXAMPLE:

The distance between points A and B is 11.

𝐴 𝐵

11

DISTANCE FORMULA: Given two points

Finding distance given:A GRAPH

PRACTICE: Find the distance of AB.

𝐴

𝐵

10 𝑨𝑩=𝟏𝟎

PRACTICE: Find the distance of CD.

𝐶

𝐷

10

8

a

b

d

Distance Formula:

PRACTICE: Find the distance of CD.

𝐶

𝐷

6

7

a

b

d

Distance Formula:

PRACTICE: Find the distance of EF.

𝐸

𝐹

3

4

a

b

d

Distance Formula:

Finding distance given:TWO POINTS

PRACTICE: Find the distance of AB given the two points

Distance Formula Substitute known values

Subtract

Square

Add

𝑥1 𝑦1 𝑥2 𝑦2

+¿

PRACTICE: Find the length of AC given the two points

Distance Formula Substitute known values

Subtract

Square

Add

𝑥1 𝑦1 𝑥2 𝑦2

¿5

PRACTICE: Find the length of RS given the two points

Distance Formula Substitute known values

Subtract

Square

Add

𝑥1 𝑦1 𝑥2 𝑦2

HOMEWORK #4:

Pg. 20: 31-34, 43-45, 50-52

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, 35HW #3: Pg. 19: 5-19, 25-27