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**MathsIsFun****Administrator**- Registered: 2005-01-21
- Posts: 7,663

Just finished a page on Heron's Formula (Area of a triangle from its sides). What do you think about it?

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**Ninja 101****Member**- Registered: 2006-02-20
- Posts: 936

Hmm. that is very interesting and it may help me in my GCSEs in about a year's time.

*Last edited by Ninja 101 (2006-06-08 23:00:11)*

Chaos is found in greatest abundance wherever order is being saught. It always defeats order, because it is better organized.

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**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 23,200

The page is very good.

The special case of

(i) an equilateral triangle and the simplified formula for area of such triangles and

(ii) isosceles right angled triangle may be added.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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**John E. Franklin****Member**- Registered: 2005-08-29
- Posts: 3,588

I expanded the equation for area by eliminating the s and just using a, b, and c, however, I must have made a mistake because when I enter the a=3, b=4, c=5 famous triangle for the sides, I don't get 1.5 like the original formula.

Infact, my square root goes negative inside, so a big boo-boo.

Here is my wrong equation:

**igloo** **myrtilles** **fourmis**

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**Ninja 101****Member**- Registered: 2006-02-20
- Posts: 936

I'm afraid you've lost me.

Chaos is found in greatest abundance wherever order is being saught. It always defeats order, because it is better organized.

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**Devantè****Real Member**- Registered: 2006-07-14
- Posts: 6,400

Nice page. It'll probably come in handy when I do an exam.

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