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What is the size of angle p ?

The diagram shows a rhombus . The midpoints of two of its sides are joined with a straight line. What is the size of angle p ?. Rhombus. Teacher's Notes Topic: Angles, Proof, Algebra. L7. Solve the original problem, then ... Change 110° - make it bigger ? - make it smaller ?

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What is the size of angle p ?

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  1. The diagram shows a rhombus. The midpoints of two of its sides are joined with a straight line. What is the size of angle p ? Rhombus Teacher's Notes Topic: Angles, Proof, Algebra L7 Solve the original problem, then ... Change 110° - make it bigger ? - make it smaller ? Relabel the 110° angle as x. What if x =120° ? x = 140° ? Can you work out algebra to link x and p? What if x is 90° ? What if x is 180° ?

  2. Rhombus The diagram shows a rhombus. The midpoints of two of its sides are joined with a straight line. What is the size of angle p ?

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