anonymous
  • anonymous
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.
Mathematics
  • Stacey Warren - Expert brainly.com
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schrodinger
  • schrodinger
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anonymous
  • anonymous
@ParthKohli @paki @mathmate @Miracrown please help me understand. Im stuck between C & D :(
mathmate
  • mathmate
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.
mathmate
  • mathmate
Can you explain "by HL".

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anonymous
  • anonymous
is HL hight and length?
mathmate
  • mathmate
Have you drawn the diagrams?
mathmate
  • mathmate
Once you have done that, you can determine which sides are the heights and which are the lengths. And the problem will be solved.
anonymous
  • anonymous
im having trouble trying to draw it, i cant place the sides where they belong. my brain keeps mixing things up . :(
anonymous
  • anonymous
@mathmate
anonymous
  • anonymous
@Directrix @Nnesha @zepdrix
mathmate
  • mathmate
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.
anonymous
  • anonymous
b= 90 degrees y= 90 egrees BC= 20 in length YZ= 20 in length AC=XZ correct?
anonymous
  • anonymous
@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
mathmate
  • mathmate
Can you draw the information on the diagram, after which you will not make the mistake you just made?
anonymous
  • anonymous
ok ill try, im using a mouse ll
anonymous
  • anonymous
|dw:1444076621804:dw|
anonymous
  • anonymous
@mathmate i used the writing tool but
anonymous
  • anonymous
i hope it makes enough sense
mathmate
  • mathmate
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.
anonymous
  • anonymous
so if its slanted/diagnal its called a perpendicular distance? @mathmate
mathmate
  • mathmate
"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.
anonymous
  • anonymous
OHHHHHHHHHHHH ok so id compare measuring the height of a regular building to the leaning tower of pizza?
mathmate
  • mathmate
now that you know what the length (BC) and height. You know what additional information you would need to complete the proof.
anonymous
  • anonymous
yes!~ thank you VERY VERY much for having SO SO SO much patience with me! im really slow sometimes @mathmate
mathmate
  • mathmate
You're welcome! :)

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