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sin = 3/5
perpendicular = 3
hypotenuse = 5
In triangle ABC,
By Pythagoras theorem,
BC square = AC square - AB square
= (5)^2 - (3)^2
= 25 - 9
= 16
BC. = √16
BC. = 4 cm
cos theta = B/H
cos theta = 4/5.
tan theta = P/B
tan theta = 3/4
2.questions are same to 1st.
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