Reflex - An angle greater than 180, Hypotenuse - The longest side of a right-angled triangle, Pythagoras - The name of the theorem which links the lengths of all 3 sides of a right-angled triangle, Equilateral - A triangle with all equal sides, Isosceles - A triangle with two sides of equal length, Opposite - The name of the side labelled 4 cm, Trigonometry - A type of maths involving triangles and angles, Adjacent - The name of the side labelled 5 cm, Protractor - A tool used to measure angles accurately, Sin - Opposite ÷ Hypotenuse, Cos - Adjacent ÷ Hypotenuse, Tan - Opposite ÷ Adjacent,

Pythagoras and Trigonometry

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