## Establish the sine, cosine and area rules for any triangle and solve related problems (VCMMG367)

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• ## I can utilise the sine and cosine laws to solve problems involving non-right angled triangles.

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# Properties of Right-Angled Triangles

### “Opposite” is the opposite to the angle. “Adjacent” is next to to the angle. “Hypotenuse” is the long side of the right-angled triangle.

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# Sine Law

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### Notice in the picture to the left, angle “A” is the opposite of side “a” and angle “B” is opposite to the side “b”.

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# Cosine Law

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### There are 3 formulas (see above) that you can use to figure out the relevant information.

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