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Trigonometric Ratio

26/10/2017 2 0 View Comments

A ratio is a statement of a mathematical relationship comparing two quantities, often represented as a fraction. If we consider an angle A in a right angled triangle, we can construct various ratios to compare the lengths of the sides. Special relationships that exist in right angled triangles are called trigonometric ratios.

There are 3 basic trigonometric ratios that relate sides and angles together.

SinA = Opposite Side/Hypotenuse.

CosA = Adjacent Side/Hypotenuse.

TanA = Opposite side/Adjacent Side.

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