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Which is the cosine ratio of ZA?А19728195B195197281972819519528
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Which is the cosine ratio of ZA?А19728195B195197281972819519528

User Jeremy Conley
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Let's begin by listing out the given information:


\begin{gathered} adjacent,AC=28 \\ hypotenuse,AB=197 \\ opposite,BC=195 \\ cosA=(adjacent)/(hypotenuse) \\ cosA=(28)/(197)=0.14213 \\ A=\cos ^(-1)0.14213 \\ A=81.82\approx82 \\ A=82^(\circ) \\ \\ \therefore cosA=(28)/(197) \end{gathered}

User Mukund Gandlur
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