Find the rise of BD?
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I give you a hint. The area of Triangle ABD = area ABC +area BCD Now, call , the height. Then you can find, Thus, area ABD= area ABC can be computed by Heron's Formula area BCD= You have an equation to solve for!
Hello, Zak! In , use the Law of Cosines to find Hence: . Then: . In right triangle Therefore: .
Last edited by Soroban; December 3rd 2006 at 05:51 PM.
Hello, Zak! An alternate approach . . . In , use the Law of Cosines to find angle . . Hence: . In right triangle . . Therefore: .
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