| Angles - Lines - Measuring Angles |
| Properties of Lines |
| | Crossing & Parallel Lines
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| | A nice visual tutorial on intersecting and parallel lines. |
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| | Lines, Rays, Angles
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| | An illustrated overview of points, lines, segments, and rays, and a nice review of the properties of lines. |
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| | Parallel - Perpendicular - Midpoint
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| | A geat tutorial on lines in the plane from the BBC! |
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| | Parallel and Perpendicular Lines
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| | Mathematics problems often deal with parallel and perpendicular lines.
Since these are such popular lines, it is important that we remember some information about their slopes.
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| | Parallel and Perpendicular Lines
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| | After completing this tutorial, you should be able to: Find the slope of a line that is parallel to a given line, and Find the slope of a line that is perpendicular to a given line.
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| | Points - Learningwave
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| | A look at how to plot points in the coordinate plane, and the assignment of ordered pairs. |
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| | Dr. Math - Line Question
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| | Dr. Math answers the following question - How do you tell if the graphs of equations are parallel,
perpendicular, or neither without graphing?
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| Angle Measurement |
| | Measure These Angles!
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| | A great online activity that features a protractor you can move on-screen! |
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| | Angles and Lines: Homework Hotline
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| | If you have a fast internet connection, check out this great video tutorial! |
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| | Transversals and Angles
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| | A great animated tutorial that helps students learn the properties of vertical, alternate interior, and alternate exterior angles. |
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| | ReviseWise - Angles
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| | From the BBC, a great animated site that explores the properties of angles and how to measure them. |
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| | BBC - Angles
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| | A look at Simple angle facts, Different types of angle, and Parallel lines. |
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| | Classifying Angles
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| | Also see
Angles and Parallel Lines,
Angles in a Triangle, and
Constructing Bisectors.
These sites provide lessons, activities and illustrations on angles and angle measurement! |
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| | Angles and Lines
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| | This page links you to a series of lessons on Angles and Lines, including: Angles and their Measures, Parallel and Perpendicular Lines, and Constructing Perpendiculars. There are several Sample Problems and an on-line Glossary of Terms! |
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| | Angles greater than 360 degrees.
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| | Dr. Math spins farther than Dr. J. to answer questions about these angles... |
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| | Angles!
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| | Great illustrated lessons on angles from S-Cool! |
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| | Angles and Intersecting lines
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| | From Math.com, an illustrated look at angle intersections and related terminology. |
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| | Angles and Angle Terms
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| | From the Math League, a series of great lessons on angles, including: What is an angle?, Degrees: measuring angles, Acute angles, Obtuse angles, Right angles, Complementary angles, Supplementary angles, Vertical angles, Alternate interior angles, Alternate exterior angles, Corresponding angles, Angle bisector, Perpendicular lines. |
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| | Missing Angles in a Quadrilateral
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| | It is often possible to find a missing angle when given some of the angles of a quadrilateral. Find out how at this site! |
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| | Angle Measures
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| | Brief introduction to angles and how they are measured! |
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