Simple Math Question plz help | Mathematics | Page 1

dull valeBOT Mar 8, 2023, 4:17 PM

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sacred atlas Mar 8, 2023, 4:18 PM

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CD=8, DB=4, AC=9

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What is the EB?

hardy cape Mar 8, 2023, 4:38 PM

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Pythagorean theorum

jaunty steppe Mar 8, 2023, 4:39 PM

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are these triangles similar triangles?

little bobcat Mar 8, 2023, 4:41 PM

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Yes, cause they both have a right angle, and angle B

ionic ferry Mar 8, 2023, 4:44 PM

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well just use Pythagorean on triangle CBA aabd then use conecpt of similar triangles

jaunty steppe Mar 8, 2023, 4:49 PM

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The length of DE would be 3, and using the Pythagorean theorem you can find that EB would be equal to 5.

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merry turret Mar 9, 2023, 6:59 AM

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Can’t you just use the Thales theorem ?

hybrid galleon Mar 9, 2023, 7:00 AM

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merry turret Can’t you just use the Thales theorem ?

sounds like extra work and idk if they have learned it

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i havent

serene folio Mar 9, 2023, 7:05 AM

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my method was to use similar triangles to find DE, leaving us with a famous Pythagorean triple to get EB

merry turret Mar 9, 2023, 7:06 AM

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Well it’s direct since it gives you DB/CB= DE/AC

serene folio Mar 9, 2023, 7:06 AM

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question asks for EB tho?

hybrid galleon Mar 10, 2023, 1:14 AM

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!nosols

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delete that

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!nosols

patent warren Mar 10, 2023, 4:43 AM

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jaunty steppe The length of DE would be 3, and using the Pythagorean theorem you can find that...

Idk if this is relevant but I kind of see the quadrilateral on the left is made of a rectangle and a right triangle , how did you get DE though?

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oh wait nvm I get it now

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because the angle of bde and abc id the same

hard sorrel Mar 10, 2023, 5:24 AM

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hybrid galleon delete that

I deleted it but can you say the reason?

hybrid galleon Mar 10, 2023, 5:25 AM

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thats why

hard sorrel Mar 10, 2023, 5:26 AM

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Sry dude

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I didn't know

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You can just use similarity and find the length of DE and then find EB using Pythagoras theorem

hybrid galleon Mar 10, 2023, 5:31 AM

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you're good

hard sorrel Mar 10, 2023, 5:31 AM

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hybrid galleon you're good

Me?

hybrid galleon Mar 10, 2023, 5:31 AM

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yes

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like youre fine its okay you messed up nbg

hard sorrel Mar 10, 2023, 5:32 AM

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Oh kk

merry turret Mar 10, 2023, 10:00 PM

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serene folio question asks for EB tho?

Indeed you’re right I read it wrong

sacred atlas Mar 11, 2023, 4:58 PM

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.close

#Simple Math Question plz help