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January 25, 2015

January 25, 2015

Posted by **Tyson** on Friday, September 28, 2012 at 8:42pm.

I'm not sure how to do this question, I tried drawing a picture but I'm still not understanding it.

- Pre-Calculus -
**Reiny**, Saturday, September 29, 2012 at 12:05amdraw a perpendicular from side x to side y, let it be h

Area of triangle

= (1/2)base x height

= (1/2) y h

but sinØ = h/x

h = xsinØ

so area =(1/2) y xsinØ

= (1/2)xy sinØ

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