Monday, May 20, 2013

Unit 2, Day 2

Unit 2, Day 2: Objective: review Pythagorean theorem. Definitions of angles. triangle angle sum; triangle classifications, distance formula.

Define: Pythagorean theorem: A theorem attributed to Pythagoras that the square of the hypotenuse of a right triangle is equal to the sum f the squares of the other.
            Triangle angle sum: The sum of the interior angles of any triangle is equal to 180 degrees.
            Triangle classifications: The basic elements of any triangle are its sides and angles. triangles are classified depending on relative sizes of their elements.

http://passyworldofmathematics.com/Images/pwmImagesFour/TriangleSumOne540x482JPG.jpghttp://upload.wikimedia.org/wikipedia/en/thumb/b/bf/Slope_of_lines_illustrated.jpg/400px-Slope_of_lines_illustrated.jpg

http://www.cut-the-knot.org/triangle/TriangleClassification.gif 

Tips from the pros video: http://www.youtube.com/watch?v=w-r_B11AxTk

Quiz:

1. For the triangle, measure in centimeters and calculate the areas of the squares on each side of the triangle.


photo.JPG
 photo.JPG
2. Find angle M
3. Find angle P

Answer Key:

1. photo.JPG 
2. M = 31 degrees
3. P = 34 degrees

Video: http://www.youtube.com/watch?v=AA6RfgP-AHU

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