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anonymous

  • one year ago

Angle B = 90 degrees, side BC = 20, angle Y = 90 degrees, and side YZ = 20. What additional information would you need to prove that ΔABC≅ΔXYZ by HL? Angle A is congruent to angle X. Angle B is congruent to angle Y. Side AB is congruent to side XY. Side AC is congruent to side XZ.

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  1. anonymous
    • one year ago
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    @ParthKohli @paki @mathmate @Miracrown please help me understand. Im stuck between C & D :(

  2. mathmate
    • one year ago
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    Can you post or draw the diagram, according to the given information, and start from there? In geometry, a diagram must be drawn, if it is not already supplied. Drawing the diagram by hand will help you sort out the given information. With practice, most simple problems will be solved when you finish drawing the diagram.

  3. mathmate
    • one year ago
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    Can you explain "by HL".

  4. anonymous
    • one year ago
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    is HL hight and length?

  5. mathmate
    • one year ago
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    Have you drawn the diagrams?

  6. mathmate
    • one year ago
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    Once you have done that, you can determine which sides are the heights and which are the lengths. And the problem will be solved.

  7. anonymous
    • one year ago
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    im having trouble trying to draw it, i cant place the sides where they belong. my brain keeps mixing things up . :(

  8. anonymous
    • one year ago
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    @mathmate

  9. anonymous
    • one year ago
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    @Directrix @Nnesha @zepdrix

  10. mathmate
    • one year ago
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    That doesn't sound good for someone working on geometry. I believe the first lesson in geometry is to follow instructions/information to draw a diagram. I'll start the drawing and let you complete. Question wants you to prove ΔABC≅ΔXYZ, and angle B=90. so as we discussed before, the angles must be listed in order. |dw:1444075556282:dw| Now read the question again, and fill in all information not already in the diagram. After that, you can decide which of the missing information is required to prove by HL.

  11. anonymous
    • one year ago
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    b= 90 degrees y= 90 egrees BC= 20 in length YZ= 20 in length AC=XZ correct?

  12. anonymous
    • one year ago
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    @mathmate i think D would be my answer, i just checked it with my other options and none of them match up except for D :3

  13. mathmate
    • one year ago
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    Can you draw the information on the diagram, after which you will not make the mistake you just made?

  14. anonymous
    • one year ago
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    ok ill try, im using a mouse ll

  15. anonymous
    • one year ago
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    |dw:1444076621804:dw|

  16. anonymous
    • one year ago
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    @mathmate i used the writing tool but

  17. anonymous
    • one year ago
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    i hope it makes enough sense

  18. mathmate
    • one year ago
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    That's good. It seems that the notion of "height" is not clear to you. Height in a figure is the length measure perpendicular to the base. For example, |dw:1444076849602:dw| You will see that the slant side is not a height. Only the perpendicular distance is.

  19. anonymous
    • one year ago
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    so if its slanted/diagnal its called a perpendicular distance? @mathmate

  20. mathmate
    • one year ago
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    "Height in a figure is the length measure perpendicular to the base." If it is not perpendicular to the base it is not a height. Think of what you measure when you measure the height of a building. You would not measure it on the slant.

  21. anonymous
    • one year ago
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    OHHHHHHHHHHHH ok so id compare measuring the height of a regular building to the leaning tower of pizza?

  22. mathmate
    • one year ago
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    now that you know what the length (BC) and height. You know what additional information you would need to complete the proof.

  23. anonymous
    • one year ago
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    yes!~ thank you VERY VERY much for having SO SO SO much patience with me! im really slow sometimes @mathmate

  24. mathmate
    • one year ago
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    You're welcome! :)

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