Solution)
On applying Pythagoras Theorem
15^2=6^2 + A^2
So, A=13.74 m
Now,
Sin theta= perpendicular/hypotnuse=6/15 (Ans)
Cos theta=base/ hypotnuse=13.74/15 (Ans)
Tan theta=perpendicular/base=6/13.74 (Ans)
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Good luck!:)
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