Question

in a right angle triangle of base is 5 cm and its perpendicular is 3 cm find sin and cos

Answer 1

Answer:

From pythagoras theorem

(Hypotenous)²= (opposite)²+(adjecent)²

                       = (3)²+(5)²

                       = 9 + 25

                       = 34

Hypotenous = √34

                     = 5.83cm

∴ sin = opposite/hypotenous = 3/5.83

   cos = adjecent/hypotenous = 5/5.83

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