Important right triangles to remember
November 02, 2019
Isosceles (45 degrees) and equilateral (60 degrees) triangles with associated sine, cosine and tangent rations.
These 2 triangles contain the sin cos and tan ratios for the commonly used angles of 30, 45 and 60 degrees. Often used in Paper 1 (non-calculator) questions, memorising these can be invaluable
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Some tips for tutors and parents about how to teach and tackle reasoning for the 11+ exam and similar levels.
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