copyright © 2010 kelly mott geometry review. a copyright © 2010 kelly mott name the figure point
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Copyright © 2010 Kelly Mott
GEOMETRYREVIEW
ACopyright © 2010 Kelly Mott
Name the FigurePoint
BA
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Name the FigureLine Segment
A B C
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Name the FigureLine
BA
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Name the FigureRay
A
BC
Name the Angle
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Right Angle
90 degrees
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Name the AngleAcute Angle
Less than 90 degrees
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Name the AngleObtuse Angle
Greater than 90 degrees and less than 180 degrees
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Name the AngleStraight Angle
180 degrees
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Name the AngleReflex Angle
More than 180 degrees and less than 360 degrees
Part 6: Triangles
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Click on the link to watch the Brain Pop Video:
http://www.brainpop.com/math/geometryandmeasurement/typesoftriangles/
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Triangles have 3 angles.
Triangles
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1
• This is an equilateral triangle• All _____ sides are the same length.• The angles of an equilateral triangle all measure ____ degrees.
Equilateral Triangle
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2
• How many angles are acute?______________• How many angles are obtuse? _____________• How many angles are right angles? _________
Equilateral Triangle
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3
• j
Circle the Equilateral Triangles
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4
• This is an isosceles triangle• _____ sides are the same length and _____
angles are the same.
Isosceles Triangle
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5
• How many angles are acute?______________• How many angles are obtuse? _____________• How many angles are right angles? _________
Isosceles Triangle
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6
• j
Circle the Isosceles Triangles
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7
• These are scalene triangles.• _____ sides are the same length.
Scalene Triangle
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8
• How many angles are acute?______________• How many angles are obtuse? _____________• How many angles are right angles? _________
Scalene Triangle
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9
• How many angles are acute?______________• How many angles are obtuse? _____________• How many angles are right angles? _________
Scalene Triangle
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10
• j
Circle the Scalene Triangles
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11
• These are right triangles.• One angle measures _____ degrees.
Right Triangle
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12
• A right triangle can sometimes be a _________________ triangle.
Right Triangle
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13
• How many angles are acute?______________• How many angles are obtuse? _____________• How many angles are right angles? _________
Right Triangle
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14
• j
Circle the Right Triangles
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15
1. Equilateral
2. Isosceles
3. Scalene
4. Right
Match the Triangles
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16
Part 6 : Angle Challenge
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A
B
How many angles can you find?
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• Write how many and name the angles:
How many right angles? _____________________ How many acute angles? _____________________ How many obtuse angles? _____________________
A
B C
Angle Challenge
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17
• Write how many and name the angles:
How many right angles? _____________________ How many acute angles? _____________________ How many obtuse angles? _____________________
A
B C
D
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Angle Challenge
18
• Write how many and name the angles:
How many right angles? _____________________ How many acute angles? _____________________ How many obtuse angles? _____________________
A
B C
D
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Angle Challenge
19
• Write how many and name the angles:
How many right angles? _____________________ How many acute angles? _____________________ How many obtuse angles? _____________________
A
B C
D
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Angle Challenge
20
Copyright © 2010 Kelly Mott
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