Impossible Triangles

 teachMathematics: Impossible Triangles

Can these triangles exist?The main thrust of this activity is easily explained - What reasoning can you use to decide if these triangles can exist or not? Assume that all lengths are rounded to the nearest whole number This is an alternative way to apply what you know about triangle geometry. Pythagoras"s theorem, SOHCAHTOA (right-angled trigonometry), Sine rule, Cosine rule and more can all be used to reason one way...

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