i know a few -

1) abc/4r

2) 1/2 * base * height

3) r * s

4) r1 * (s-a)

5) r2 * (s-b)

6) r3 * (s-c)

7) ( r * r1 * r2 * r3 ) ^ (1/2)

8) heron's formula

if u know more please post them!!

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TopNewestgiven three angles and a height.. we have ((h^2)/2)(tan (90-a)+tan (90-b)) where a and b are angles opposite to the height..

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if u know more , plzz post them and reshare this note!!

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