Why do we need to use the SINE RULE, when we have learnt TOA CAH SOH?:confused:

TOA CAH SOH is use to solve what? And SINE RULE is use to solve what?:confused:

can anyone tell mi plz.. :(

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- Jan 31st 2006, 12:44 AMxiaozDIFF between TOA CAH SOH and the RULES!!?? HELP!!!
**Why do we need to use the SINE RULE, when we have learnt TOA CAH SOH?**:confused:

**TOA CAH SOH is use to solve what? And SINE RULE is use to solve what?**:confused:

can anyone tell mi plz.. :( - Jan 31st 2006, 02:06 AMTD!
TOA CAH SOH only holds in a right triangle, the sine (and cosine) rule are valid in an arbitrary triangle.

- Jan 31st 2006, 03:56 AMxiaoz
THXz.. but i still abit dun get it.. =.="

- Jan 31st 2006, 04:29 AMjacs
TOH CAH SOH is for use only in right angled triangles.

For non-right angled triangles we can find an unknown side (providing we have two angles and another side)

or if you are looking for an unknown angle (with two sides known and one angle then use

- Jan 31st 2006, 05:36 AMxiaoz
... then i more confuse le.. cos i am the 1 asking~~ =.= :confused:

the poly ppl should no rite? :eek: