Pre-Algebra Enrichment. Classifying Angles Acute angle- An angle that measures less than 90 degrees....
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![Page 1: Pre-Algebra Enrichment. Classifying Angles Acute angle- An angle that measures less than 90 degrees. Obtuse angle- An angle that measures more than 90.](https://reader035.fdocuments.us/reader035/viewer/2022062804/56649ec85503460f94bd47dd/html5/thumbnails/1.jpg)
Pre-Algebra Enrichment
![Page 2: Pre-Algebra Enrichment. Classifying Angles Acute angle- An angle that measures less than 90 degrees. Obtuse angle- An angle that measures more than 90.](https://reader035.fdocuments.us/reader035/viewer/2022062804/56649ec85503460f94bd47dd/html5/thumbnails/2.jpg)
Classifying Angles
Acute angle- An angle that measures less than 90 degrees.
Obtuse angle- An angle that measures more than 90 degrees and less that 180 degrees.
Right Angle- An angle that measures 90 degrees.
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Question #1If an angle is 180 degrees it is a(n)… Right Angle
Straight Angle
Obtuse Angle
Acute Angle
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Sorry!
Your answer was incorrect, please try again!
![Page 5: Pre-Algebra Enrichment. Classifying Angles Acute angle- An angle that measures less than 90 degrees. Obtuse angle- An angle that measures more than 90.](https://reader035.fdocuments.us/reader035/viewer/2022062804/56649ec85503460f94bd47dd/html5/thumbnails/5.jpg)
Correct!
Great job! It is a straight angle. Please continue.
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Classifying Triangles (based on sides) Equilateral Triangle- A triangle with three
equal sides Isosceles Triangle- A triangle with at least
two equal sides Scalene Triangle- A triangle with no equal
sides
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Classifying Triangles (based on angles) Right Triangle- A triangle containing a right
angle Acute Triangle- A triangle that has three acute
angles Obtuse Triangle- A triangle that has one obtuse
angle and two acute angles Equiangular Triangle- A triangle that has three
equal angles
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Question #1AIf a triangle has three equal sides it is called… Equiangular
Equilateral
Isosceles
Scalene
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OOPS!
Sorry, that was incorrect, you better review your triangle information and then try
again!
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Congratulations!
You know your stuff! Continue on to further test your triangle knowledge.
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Question #2A triangle with an angle greater than 90 degrees is called…
An acute triangle
An isosceles triangle
An obtuse triangle
A right triangle
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Sorry!
Your answer was incorrect, please try again!
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Correct!
Great job! It is an obtuse triangle. Please continue.
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Question #3What kind of triangle is this:
Right Triangle
Scalene Triangle
Neither Right or Scalene
Both Right and Scalene
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Incorrect!
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Correct!
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General Triangle Properties
Triangles are three-sided polygons.
All triangles have an angle sum of 180 degrees based on the Triangle Sum Theorem.
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Question #4A triangle with 4 sides must have an angle sum of: 180
360
240
A triangle cannot have 4 sides.
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OOPS!
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Excellent!
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Question #5What is the angle sum of: 360 degrees
180 degrees
270 degrees
There is no way of knowing what the angle sum is.
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Sorry!
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Great Job!
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Angle Pairs:
Complementary Angles- angles that have measures that add to 90 degrees.
Supplementary Angles- angles that have measures that add to 180 degrees.
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Question #6The following angles are considered…
Complementary
Supplementary
Complementary and Supplementary
None of the Above
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Incorrect
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Correct!
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Question #7A 6 sided figure is called what and has a degree measure of what?
Hexagon, 540
Hexagon, 720
Heptagon, 540
Heptagon, 720
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OOPS!
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Excellent!
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Congruency
Congruent is another word for equal.
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Question #8The second angle of a triangle is two times the measure of the first angle. The third angle is 3 times the measure of the second angle what is the measure of each angle?
1st- 30º, 2nd- 60º, and 3rd- 90º
1st- 20º, 2nd- 40º, and 3rd- 120º
1st- 20º, 2nd- 60º, and 3rd- 100º
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Sorry!
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Great Job
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Question #9If two sides of a triangle are said to be congruent that means that they are different lengths. True or False.
True
False
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Incorrect
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Correct
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Transversals of Parallel Lines
A transversal is a line that intersects any two or more other lines.
When a transversal intersects parallel lines the angles formed have the following properties:
1. All acute angles formed are congruent. 2. All obtuse angles formed are congruent. 3. Any acute angle is supplementary to any
obtuse angle formed.
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Question #10What types of angles are 4 and 6?
• Corresponding Angles
Alternate Interior Angles
Alternate Exterior Angles
QuickTime™ and aTIFF (Uncompressed) decompressor
are needed to see this picture.
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OOPS!
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Excellent!
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Question #11What types of angles are 2 and 6?
• The angles are alternate interior.
• The angles are corresponding.
• The angles are vertical.
• Not enough information.
QuickTime™ and aTIFF (Uncompressed) decompressor
are needed to see this picture.
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Wrong Answer
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Correct
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Question #12What types of angles are 1 and 7?
• Vertical Angles
• Corresponding Angles
• Alternate Exterior Angles
• Alternate Interior Angles
QuickTime™ and aTIFF (Uncompressed) decompressor
are needed to see this picture.
![Page 46: Pre-Algebra Enrichment. Classifying Angles Acute angle- An angle that measures less than 90 degrees. Obtuse angle- An angle that measures more than 90.](https://reader035.fdocuments.us/reader035/viewer/2022062804/56649ec85503460f94bd47dd/html5/thumbnails/46.jpg)
OOPS!
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Great Job!
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Slope
The slope of any line is: Vertical Change Horizontal Change
Which is the same as: Rise Run
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Question #13What is the slope of the top line?
• 1
• -1
2
-2
QuickTime™ and aTIFF (Uncompressed) decompressor
are needed to see this picture.
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Incorrect
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Correct
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Question #14What is the slope of this line?
0
1
Not enough information.
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OOPS!
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Great Job
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Question # 15What is the slope of this line?
1
0
Undefined
-1
Not Enough Information
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Sorry
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Excellent
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The End!