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mbma526

  • one year ago

Will fan and Medal Draw a triangle that is both a right triangle and an isosceles triangle. You can use either pencil and paper, or a draw program. Label the angles. What are the measurements of the angles that are not equal to 90 degrees? Describe the two sides opposite the angles that are not equal to 90 degrees. Now draw an equilateral triangle. Label the measurements of the angles. Can an equilateral triangle ever be a right triangle too? Explain your answer. Finally, draw a right triangle. Can this triangle ever have an obtuse angle? Explain your answer.

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  1. mbma526
    • one year ago
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    |dw:1439913502019:dw|

  2. mbma526
    • one year ago
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    @ganeshie8

  3. anonymous
    • one year ago
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    http://prntscr.com/862whi

  4. anonymous
    • one year ago
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    The sum of the other angles totals up to 90°.

  5. mbma526
    • one year ago
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    thank you @ChiefArnav

  6. triciaal
    • one year ago
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    what are the properties of an isosceles triangle? all angles in a triangle add up to 180

  7. mbma526
    • one year ago
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    so they are both 90 @triciaal

  8. misty1212
    • one year ago
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    Hi!!

  9. misty1212
    • one year ago
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    isosceles means two sides are equal right?

  10. mbma526
    • one year ago
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    yes

  11. misty1212
    • one year ago
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    so lets see if we can draw a right triangle with both legs that look about equal

  12. misty1212
    • one year ago
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    |dw:1439920586813:dw| here is my attempt

  13. mbma526
    • one year ago
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    yes those are equl i think

  14. misty1212
    • one year ago
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    ok now it is clear that if the two legs are equal, the two angles are equal as well?

  15. mbma526
    • one year ago
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    yes

  16. misty1212
    • one year ago
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    and it is also true that the total degrees in a triangle with be 180 you have already used up 90 in the right angle, which means both of those equal angles together must add up to 90 degrees

  17. mbma526
    • one year ago
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    yea

  18. misty1212
    • one year ago
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    so what is half of 90?

  19. mbma526
    • one year ago
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    45

  20. misty1212
    • one year ago
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    ok so we have completed finding all the angles of that right isosceles|dw:1439920814239:dw| triangle

  21. mbma526
    • one year ago
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    thank you

  22. misty1212
    • one year ago
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    \[\color\magenta\heartsuit\] ready to move on?

  23. mbma526
    • one year ago
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    yes

  24. misty1212
    • one year ago
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    you want to draw an equilateral triangle?

  25. mbma526
    • one year ago
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    yes |dw:1439920937368:dw|

  26. misty1212
    • one year ago
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    nice one again the sum of the measure of the angles is 180 and since all the sides are the same, all the angles are also the same so what is one third of 180?

  27. mbma526
    • one year ago
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    60

  28. misty1212
    • one year ago
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    so they are all equal 60 right

  29. mbma526
    • one year ago
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    yes

  30. misty1212
    • one year ago
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    Can an equilateral triangle ever be a right triangle too? Explain your answer. NO since all the angles are 60, none are 90!!

  31. misty1212
    • one year ago
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    last part only

  32. misty1212
    • one year ago
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    you want to draw some right triangle?

  33. mbma526
    • one year ago
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    yes|dw:1439921167405:dw|

  34. misty1212
    • one year ago
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    ok that looks good

  35. mbma526
    • one year ago
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    thank you

  36. misty1212
    • one year ago
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    Can an equilateral triangle ever be a right triangle too? Explain your answer. no, since "obtuse" means bigger than 90 you have already used up 90 in the right angle, so you only have 90 left for the other two angles

  37. misty1212
    • one year ago
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    therefore each must be less than 90

  38. mbma526
    • one year ago
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    so it would have to be 45

  39. anonymous
    • one year ago
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    who deleted my post

  40. misty1212
    • one year ago
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    no they could be anything but their total has to be less than 90

  41. mbma526
    • one year ago
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    oh ok

  42. mbma526
    • one year ago
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    @misty1212

  43. anonymous
    • one year ago
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    easy

  44. anonymous
    • one year ago
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    |dw:1440022658129:dw| sorry im bad at drawing

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