Show that A=(1/2)bc sin alpha.. How should this be done?
Last edited by mr fantastic; Jul 24th 2011 at 06:51 PM.
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Are you asking for the proof of this formula or is this in context of a bigger problem?
Originally Posted by JamesBond16 Show that A=(1/2)bc sin alpha.. How should this be done? I guess, you talking about formula of triangle area. Say, that $\displaystyle b$ is base of your triangle. What can you tell about $\displaystyle c\cdot\sin{\alpha}$, what is this measures?
Originally Posted by Also sprach Zarathustra I guess, you talking about formula of triangle area. [snip] If that's the real question, then the OP should either use Google or refer to his/her textbook to find the proof. @OP: MHF does not re-invent the wheel. That's why Google was invented.
I am looking for the proof.
Originally Posted by JamesBond16 I am looking for the proof. Then the advice in post #4 is pertinent.
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