Inf Geometry EOCT
Here's the EOCT ppt we used to do the presentations. The answers are on there.. good luck practicing :)
May 2009
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Ms. Owens
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Additional Information
May 06, 2009
April 29, 2009
Geometry
Here are all the notes on circles..
From test 1
Download Chords, and Inscribed Polygons
Download Circle test 1 review (eraser game questions)
Download Circle_radius_diam_chords_arcs
Download Circumf, Area, sectors
Test 2
Download Secant and Tangent Angles
Download Secant and Tangent Chord Measures
Download Session 72- Review of Ch 14 (this is a circle review, not ch 14 in our book)
If you need to make up circle test 1 or test 2, study these powerpoints before coming in!
April 03, 2009
Math 1 Spring Break Review answers
Spring Break Review Answers!!
1. How many sides does each polygon have?
Pentagon __5_
Decagon __10_____
Octagon
____8_____
Triangle_____3____
Heptagon
_____7___
Nonagon
___9_____
Quadrilateral
____4__
Dodecagon ___12___
Hexagon ___6___
2.
a.
_____ Altitude____ A line that connects the vertex to the
midpoint
b. __ Angle
Bisector___. A line that cuts an angle into 2 equal parts
c.
Perpendicular Bisector A perpendicular
line that connects the vertex to the opposite side
d. ____Median____.
A perpendicular line that goes through the midpoint of the opposite sid
e.
___ Incenter____.
The point where all 3 angle bisectors meet.
f. __ Circumcenter
_. The point where all 3 perpendicular bisectors meet.
g.
Orthocenter____
The point where all 3 altitudes
meet.
h. _ Centroid_____. The point where all 3 medians meet.
3.
_d_
Median
_c_
Altitude
_a_
Perpendicular Bisector
__b_ Angle Bisector
4. ( 8 - 2 ) x 180 = 1080 5. ( 10 - 2 ) x 180 = 144 6. 360
10
7. 115 + x = 180 so x = 65
8. 12x = 10x + 8
2x = 8 so x = 4
9. In a rhombus, the diagonals bisect each other, so they cut into 2 equal parts. Therefore,
ML = MP so MP = 9
10. In a parallelogram, the sum of adjacent angles is 180, so
(3x + 38) + (7x - 8) = 180 solve for x
10x + 30 = 180 x = 15
11. 10 x 3 x 5 = 150
12. 1/2 13. 7/14 + 4/14 = 11/14 14. 11/14
15. 7/14 + 4/14 + 3/14 = 14/14 or 100% of the time
16. 4/52 + 4/52 = 2/13 17. 1/13 + 1/13 = 2/13
18. 4/52 + 13/52 - 1/52 = 4/13
19. 15 x .4 + 8 x .6 = 10. lawns
20. 7 × 6 × 5 × 4 × 3 × 2 × 1 = 5040
21. 40 22. 84 23. 60
24.
25.
26. Quadratic 27. Linear 28. Radical 29. Cubic 30. Absolute Value
31. ( opposite h , same as k )
32. The graph would flip upside down 33. The graph would shift down
March 30, 2009
Math I
Hi, here are the notes from today on solving radical equations. We have a quiz on Wednesday and a test this Thursday/Friday. Then take next week off. You deserve it.
Download Solve Radical Equations
Geometry
Interior angles and exterior angles of polygons. We have a quiz on Thursday. Cheer up, one more week till spring break :o)
Download Polygon basics & interior and exterior angle measures
Your homework is worksheet 11.1 (just that side)
March 24, 2009
Math I
Here's the power point on solving rational equations. We're doing this on Wednesday after the quiz.
March 20, 2009
Math I
Solving quadratic equations by factoring..
Here's the ppt we did in class. Your HW is the odds on the worksheet I handed out.
March 05, 2009
Inf. Geometry
Here's the power point for Monday, Wednesday, and Thursday of this week!
Download Ratios and proportions day 1
February 26, 2009
Informal Geometry
Hi there. Today we took our test on parallelograms. Tomorrow (Friday) we are doing a cumulative review, and Monday we start a new unit. Here is a tentative plan on what we will be doing for the next unit. Remember, these could change, so just treat this as an outline.
Oh, and next Tuesday is early release (yay!)
