perplexus.info :: Just Math : By all means

By all means (Posted on 2011-06-16)

In isosceles triangle AB=BC=n.

What value of AC warrants the largest area of the triangle ABC?
Solve by:
a) Plane geometry.
b) Trigonometry.
c) Calculus.
d) Any other way is welcome.

See The Solution Submitted by Ady TZIDON

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Subject	Author	Date
ths time by vectors	Jer	2011-06-16 15:54:07
Another trigonometry way (this is too fun)	Jer	2011-06-16 15:35:29
A more calculus way	Jer	2011-06-16 15:17:30
A geometry + calculus way	Jer	2011-06-16 15:02:15
A trigonometry way	Jer	2011-06-16 14:49:38

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