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anonymous
 one year ago
Fan & Medal
Calculate the length of AD given AB = 7 cm, AC =15 cm, and AE = 20.
3.25
5.25
2.5
5.5
http://static.k12.com/eli/bb/817/1/0/2_36869_44974/1/5c45df68fdad740c9f94d22ea5f92dd60c7a03f7/media/da937563f2abb5ff3640096bcfa86f9197313378/mediaasset_651711_1.jpg
anonymous
 one year ago
Fan & Medal Calculate the length of AD given AB = 7 cm, AC =15 cm, and AE = 20. 3.25 5.25 2.5 5.5 http://static.k12.com/eli/bb/817/1/0/2_36869_44974/1/5c45df68fdad740c9f94d22ea5f92dd60c7a03f7/media/da937563f2abb5ff3640096bcfa86f9197313378/mediaasset_651711_1.jpg

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freckles
 one year ago
Best ResponseYou've already chosen the best response.1\[\text{ AB } \cdot \text{ AC }=\text{ AE } \cdot \text{ AD }\]

freckles
 one year ago
Best ResponseYou've already chosen the best response.1yep solve for x aka AD

freckles
 one year ago
Best ResponseYou've already chosen the best response.1wait that one x over on the left hand side is a multiplication sign right?

freckles
 one year ago
Best ResponseYou've already chosen the best response.1\[7 \cdot 15=20x \\ \text{ divide both sides by } 20\]

freckles
 one year ago
Best ResponseYou've already chosen the best response.1np that is called the intersecting secant theorem
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