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Geometry 14 Online
OpenStudy (anonymous):

the two triangles below are similar. what is the ratio of triangle abc to triangle xyz. line xz is 10. line yz is 30. line ca is 15.

OpenStudy (confluxepic):

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OpenStudy (confluxepic):

First find similar lines.

OpenStudy (confluxepic):

@billbobaginziz

OpenStudy (confluxepic):

ca and xz match so put them in a ratio.

OpenStudy (confluxepic):

@billbobaginziz

OpenStudy (confluxepic):

10:15

OpenStudy (confluxepic):

@billbobaginziz

OpenStudy (confluxepic):

Simplify.

OpenStudy (confluxepic):

@billbobaginziz

OpenStudy (confluxepic):

2:3

OpenStudy (confluxepic):

@billbobaginziz

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