anonymous
  • anonymous
What is the length of stack J M in the rectangular prism? Round your answer to the nearest tenth. A. 20.0 cm B. 21.5 cm C. 23.3 cm D. 25.7 cm http://static.k12.com/calms_media/media/1579000_1579500/1579249/1/1090308dc016d6dbab2b0fdc1106a502ce61ccd7/MS_IMC-150123-130603.jpg
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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anonymous
  • anonymous
|dw:1434284021261:dw|
butterflydreamer
  • butterflydreamer
Firstly you'll want to find the length of DM first :) So focus on this triangle and use pythagoras theorem: |dw:1434284195211:dw|
anonymous
  • anonymous
So if I find DM will that be close to my answer :O

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butterflydreamer
  • butterflydreamer
hmm.. well when we find DM, we can then use triangle JDM to find the length of JM :) So let's take it one step at a time
anonymous
  • anonymous
Oh okay so I find area or perimeter? I think area
butterflydreamer
  • butterflydreamer
|dw:1434284365815:dw|
anonymous
  • anonymous
Okay
butterflydreamer
  • butterflydreamer
do you remember pythagoras' theorem?
anonymous
  • anonymous
Yes
anonymous
  • anonymous
Is it 20?
butterflydreamer
  • butterflydreamer
yeees! Good job so now we know that DM = 20 :) SO now we look at triangle JDM and find the length of JM |dw:1434284519786:dw|
anonymous
  • anonymous
21.54?
butterflydreamer
  • butterflydreamer
Exactly!! ^_^ But the question says to the nearest tenth so round 21.54 to 1 decimal place
anonymous
  • anonymous
21.5?
butterflydreamer
  • butterflydreamer
yep :) Good job!
anonymous
  • anonymous
Yes thanks :D
anonymous
  • anonymous
Now I can finish this test *^*
butterflydreamer
  • butterflydreamer
haha no problemo~

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