Question

in the accompanying diagram the legs of the right triangle ABC measures 5 inches and 12 inches and the hypotenuse measures 13 inches what is the value of cost a

Answer 1

We have that

`\begin{gathered} \cos \text{ A = }\frac{5\text{ in}}{13\text{ in}} \\ =\text{ }0.3846 \end{gathered}`

So the answer is cosA = 0.3846 = 5/13