1801lipez 1801lipez
  • 22-07-2020
  • Mathematics
contestada

Part F
I NEED HELP!
What is the geometric mean of the measures of the line segments A Dand DC? Show your work.

Part F I NEED HELP What is the geometric mean of the measures of the line segments A Dand DC Show your work class=

Respuesta :

nwilliams112303 nwilliams112303
  • 30-07-2020

Answer:

AC2  =  AB2 + BC2     --->     AC2  =  122 + 52     --->   AC  =  13

AD / AB  =  AB / AC     --->     AD / 12  =  12 / 13     --->     AD  =  144/13

DC  =  AC - AD     --->   DC  =  13 - 144/13     --->     DC  =  25/13

AD / DB  =  DB / DC     --->   DB2  =  AD · DC     --->     DB2  =  (144/13) · (25/13)  --->     DB  =  60/13

DB is the geometric mean of AD and DC.

Step-by-step explanation:

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