https://8842006143235788137-a-180274...attredirects=0

I don't know where to start. Some of my friends told me that I need an Angle!

Any advice?

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- January 16th 2012, 10:42 AMkreshnikArea of a Triangle.
https://8842006143235788137-a-180274...attredirects=0

I don't know where to start. Some of my friends told me that I need an Angle!

Any advice? - January 16th 2012, 10:53 AMe^(i*pi)Re: Area of a Triangle.
- January 16th 2012, 11:10 AMemakarovRe: Area of a Triangle.
It's also possible to find the area of ABC using Heron's formula, and from there easily find the area of ACD.