Resources tagged with: Trigonometric identities

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Broad Topics > Pythagoras and Trigonometry > Trigonometric identities

Sine and Cosine for Connected Angles

Age 14 to 16
Challenge Level

The length AM can be calculated using trigonometry in two different ways. Create this pair of equivalent calculations for different peg boards, notice a general result, and account for it.

Round and Round a Circle

Age 14 to 16
Challenge Level

Can you explain what is happening and account for the values being displayed?