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Geometry 8 Online
OpenStudy (anonymous):

. In right triangle ABC, CD is an altitude to the hypotenuse. If AD is 12 more than BD and CD = 8, find DB.

OpenStudy (mathstudent55):

|dw:1358064436048:dw| An altitude in a right triangle creates two similar right trianlges that are also similar to the original triangle.

OpenStudy (mathstudent55):

The lengths of corresponding sides of similar triangles are proportional. (x + 12)/8 = 8/x Cross multiply and solve for x.

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