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Published: 27/04/2012
KS4
2 pages

When do we need ½absinC?

A matching activity to enforce when you need to use sine to find the area of a triangle. Encourages students to show workings and think about different approaches to solve the same problem.    

See other resources: Geometry and measure | Trigonometry – area of a triangle


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Camilla ClarksonCamilla Clarkson
Thank you for your comment - glad you like it! We will let the contributor know.
Posted on 29th April 2019
B GB G
Students thought it would be really easy but I love how mixed the cahllenge between the normal formula of perpendicular heights and the trigonometric one. Love it!

Thank you!
Posted on 24th April 2019

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