ch 4 - pythagorean thm - day 1 - a5.notebook · ch 4 pythagorean thm day 1 a5.notebook 19 february...
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Ch 4 Pythagorean Thm day 1 A5.notebook
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February 18, 2015
Feb 1810:26 AM
Starter
Get out your Ch 12 & 13 Practice Problems WKS so we can check those!
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Example:
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** Bearings are a degree measure, not a distance.
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How to take a bearing:
Start facing North. Turn clockwise to face the direction you want to go. The degree measure you turned is the bearing from where you are to the point you want to get to.
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Jan 1910:26 AM
Label the parts of the circle
Center Radius Diameter
Chord Tangent Secant
Point of tangency4 F Circle Problems
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Jan 1910:04 AM
Circle properties (from Geometry)
*The shortest distance between two parallel lines or between a line and a point is a segment perpendicular to the line(s).
*A chord of a circle is a line segment with both endpoints on the circle.
*If one chord is a perpendicular bisector of another chord, then the first chord is a diameter.
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Jan 1910:39 AM
*A line drawn from the center of a circle at right angles of a chord bisects the chord. This creates an isosceles triangle, which can be split into two congruent triangles.
*A tangent to a circle meets the radius at the point of tangency at a right angle.
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Pythagorean Theorem and 3D Geometry If in doubt, DRAW IT out!
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Assignment:
Review Set 4C