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ashleyb
 3 years ago
can someone please help me with this geometry question?? in right triangle ACE, line BD is parallel to line AE, and line BD is perpendicular to line EC at D. the length of line BD is 3 feet, and the length of line CD is 4 feet. what is the length in feet of line AE
ashleyb
 3 years ago
can someone please help me with this geometry question?? in right triangle ACE, line BD is parallel to line AE, and line BD is perpendicular to line EC at D. the length of line BD is 3 feet, and the length of line CD is 4 feet. what is the length in feet of line AE

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jim_thompson5910
 3 years ago
Best ResponseYou've already chosen the best response.0First you need to find BC

jim_thompson5910
 3 years ago
Best ResponseYou've already chosen the best response.0do you know how to do this?

jim_thompson5910
 3 years ago
Best ResponseYou've already chosen the best response.0now set up the following ratio AE/BD = AC/BC x/3 = 20/5 solve for x

ashleyb
 3 years ago
Best ResponseYou've already chosen the best response.1but why do u set up a ratio?

jim_thompson5910
 3 years ago
Best ResponseYou've already chosen the best response.0because the ratio of AE to BD is the same as the ratio of AC to BC

jim_thompson5910
 3 years ago
Best ResponseYou've already chosen the best response.0basically, to go from BD to AE, you multiply by 4 to go from BC to AC, you also multiply by 4

jim_thompson5910
 3 years ago
Best ResponseYou've already chosen the best response.0so the bigger triangle has side lengths that are 4 times larger than the smaller triangle

jim_thompson5910
 3 years ago
Best ResponseYou've already chosen the best response.0setting up a ratio is similar to that idea

ashleyb
 3 years ago
Best ResponseYou've already chosen the best response.1oh ok i get it! thank you for your help
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