A N G L E S
<ul><li>You will learn to classify angles as   acute ,  obtuse ,  right ,  or   straight . </li></ul>
What is an angle? <ul><li>Two  rays  that share the same endpoint form an  angle . The point where the rays intersect is c...
<ul><li>Here are some examples </li></ul><ul><li>of  angles .   </li></ul>
<ul><li>We can identify an angle by using a point on each  ray  and the  vertex . The angle below may be identified as ang...
Angle Measurements <ul><li>We measure the size of an angle using  degrees .  </li></ul><ul><li>Here are some examples of  ...
Acute Angles <ul><li>An  acute angle  is an angle measuring between 0 and 90 degrees.  </li></ul><ul><li>The following ang...
Obtuse Angles <ul><li>An  obtuse angle  is an angle measuring between 90 and 180 degrees.  </li></ul><ul><li>The following...
Right Angles <ul><li>A  right angle  is an angle measuring 90 degrees.  </li></ul><ul><li>The following angles are both ri...
Straight Angle <ul><li>A  straight angle  is 180 degrees. </li></ul><ul><li>  </li></ul>
GAME TIME! <ul><li>The object of the game is to be the first to  raise your hand  and correctly name what type of angle yo...
 
Acute Angle
 
Obtuse Angle
 
Right Angle
 
Straight Angle
GREAT   JOB!!
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Angles

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Angles

  1. 1. A N G L E S
  2. 2. <ul><li>You will learn to classify angles as acute , obtuse , right , or straight . </li></ul>
  3. 3. What is an angle? <ul><li>Two rays that share the same endpoint form an angle . The point where the rays intersect is called the vertex of the angle. The two rays are called the sides of the angle. </li></ul>
  4. 4. <ul><li>Here are some examples </li></ul><ul><li>of angles . </li></ul>
  5. 5. <ul><li>We can identify an angle by using a point on each ray and the vertex . The angle below may be identified as angle ABC or as angle CBA; you may also see this written as ABC or as CBA. The vertex point is always in the middle. </li></ul>
  6. 6. Angle Measurements <ul><li>We measure the size of an angle using degrees . </li></ul><ul><li>Here are some examples of angles and their degree measurements. </li></ul>
  7. 7. Acute Angles <ul><li>An acute angle is an angle measuring between 0 and 90 degrees. </li></ul><ul><li>The following angles are all acute angles. </li></ul>
  8. 8. Obtuse Angles <ul><li>An obtuse angle is an angle measuring between 90 and 180 degrees. </li></ul><ul><li>The following angles are all obtuse. </li></ul>
  9. 9. Right Angles <ul><li>A right angle is an angle measuring 90 degrees. </li></ul><ul><li>The following angles are both right angles. </li></ul>
  10. 10. Straight Angle <ul><li>A straight angle is 180 degrees. </li></ul><ul><li> </li></ul>
  11. 11. GAME TIME! <ul><li>The object of the game is to be the first to raise your hand and correctly name what type of angle you see . </li></ul><ul><li>The correct answer will be on the following slide!! </li></ul><ul><li>Good luck! </li></ul>
  12. 13. Acute Angle
  13. 15. Obtuse Angle
  14. 17. Right Angle
  15. 19. Straight Angle
  16. 20. GREAT JOB!!

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