Geometry

Everything Geometry
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Class Resources
Everyday Geometry
Lessons
Webquest
Additional Resources




Class Resources

Please take advantage of this page to help you be successful in our class!
  • Calendar
    • Homework assignments
    • Test and quiz dates
  • Syllabus
    • Expectations
    • Grading Scale
    • Point Distribution
    • Course Goals
  • Class Book
    • This link provides many resources specific to our class
      • Guided lessons
      • Extra examples
      • Self-check quizzes
  • Grade Report
    • Check your geometry grade here
      • Grades updated weekly
  • ISBE Geometry Standards


Everyday Geometry

So you don't think you will ever use geometry outside of school? WRONG!
Math is all around you!
Geometry is used in many everyday occurrences.

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Click here to begin activity!



Lesson of the Week
Triangles
Triangles are plane shapes which lie in one plane.
They have area but not volume.
Shapes that have only straight sides are called polygons.
Triangles are polygons.




The sum of the angles in any triangle is 180º.


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Angle A + Angle B + Angle C = 180°

EQUILATERAL


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All sides are equal and all angles are equal to 60º

ISOSCELES
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*Two sides are equal

*Angles opposite the equal sides are equal


SCALENE
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*No sides are equal
*All angles are different



ACUTE-ANGLED
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All angles are less than 90º (acute)




RIGHT-ANGLED
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One of the three angles of the triangle is a right-angle (90º)


OBTUSE-ANGLED
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*One of the angles of the triangle is greater than 90º (obtuse)
*The longest side is opposite the largest angle


LET'S TRY IT!
Using the given information, decide what type of triangle is described.
Check your answers by selecting the blank space after the question.

1. This triangle has angles of 23º, 90º and 67º:
Right triangle
2. This triangle has side lengths 7, 9 and 11º: Scalene triangle
3. This triangle has angles of 59º, 66º and 55º: Acute triangle

4. This triangle has side lengths of 12, 6 and 12: Isosceles triangle
5. This triangle has angles of 45º, 100º and 35º: Obtuse triangle
6. This triangle has angles of 60º, 60º and 60º: Equilateral triangle


Webquest
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Click Here to go to the Great Pyramid Geometry Webquest!

Additional Resources

The following links provide more references to further your learning!
**Illuminations**
**Math is Fun**


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