Sine Rule

Sine Rule

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• The uppercase letters correspond to the angles, and the lower case letter is the side opposite it. It doesn’t matter which one you use, but I recommend the first one if you’re working out an angle, and the second one if you’re working out the length of a side. This is just to simplify your calculations.
• The Sine Rule can be used when you have either two sides with an angle opposite to one of the sides or one side and any two angles