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DrPepperx3 Group Title

help medal?

  • 4 months ago
  • 4 months ago

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  1. DrPepperx3 Group Title
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    6. Are the two triangles similar? How do you know?

    • 4 months ago
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  2. mathstudent55 Group Title
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    How do you prove two triangles similar? Have you heard of AA Similarity?

    • 4 months ago
  3. DrPepperx3 Group Title
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    When 2 angles of one triangle are equal to 2 corresponding angles of the other triangle,the two triangles must be similar right?

    • 4 months ago
  4. esamalaa Group Title
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    If two triangles have two of their angles equal, the triangles are similar.

    • 4 months ago
  5. DrPepperx3 Group Title
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    So since H is 42 degrees and K is 42 degrees than they are similar by the AA similarity Theorem?

    • 4 months ago
  6. esamalaa Group Title
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    yea right

    • 4 months ago
  7. mathstudent55 Group Title
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    Right. Angles H and K have the same measure. That is one pair of corresponding congruent angles. Now you need a second pair of corresponding congruent angles to be able to use AA.

    • 4 months ago
  8. mathstudent55 Group Title
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    |dw:1393542739275:dw|

    • 4 months ago
  9. mathstudent55 Group Title
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    Look in the figure above. Angles 1 and 2 are called vertical angles. Vertical angles are congruent. Do you see in your triangles vertical angles that are congruent that could be your second pair of corresponding congruent angles?

    • 4 months ago
  10. DrPepperx3 Group Title
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    Yes s:

    • 4 months ago
  11. mathstudent55 Group Title
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    Wait. Angles H and K are not enough to prove the triangles similar. That is only one pair of congruent angles. You need a second pair.

    • 4 months ago
  12. mathstudent55 Group Title
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    For the second pair, you must use vertical angles. Can you name the two vertical angles?

    • 4 months ago
  13. DrPepperx3 Group Title
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    It only has 1 pair ? So than it cant be the AA Theorem

    • 4 months ago
  14. mathstudent55 Group Title
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    No. There are 2 pairs of congruent angles. One pair is given to you since you are told the measures of angles H and K are 42 deg. There is another pair of congruent angles, but it's not given to you as congruent. You need to use vertical angles to find the second pair.

    • 4 months ago
  15. mathstudent55 Group Title
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    Look above at my drawing of vertical angles. Do you see a similar situation with your triangles?

    • 4 months ago
  16. DrPepperx3 Group Title
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    ohhhhhh okay I understand now :) ty yes I do

    • 4 months ago
  17. mathstudent55 Group Title
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    Angles HMG and JMK are vertical angles. They are congruent. Since each angle is in one of the 2 triangles, that is the other pair of congruent angles you need to use AA Similarity.

    • 4 months ago
  18. chiller13 Group Title
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    Yes they are congruent

    • 4 months ago
  19. DrPepperx3 Group Title
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    ty @chiller13

    • 4 months ago
  20. DrPepperx3 Group Title
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    @mathstudent55 do you mind helping me with a few more? ill give you medals

    • 4 months ago
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