Question

Find the value of cos I rounded to the nearest hundred, if necessary

Answer 1

To find cos I, applying the cosine formula below

`\cos\theta=(Adjacent)/(Hypotenuse)`

Where

`\begin{gathered} Adjacent=IJ=18\text{ units} \\ Hypotenuse=IK=22\text{ units} \\ \theta=I \end{gathered}`

Substitute the values of the variables

`\begin{gathered} \cos I=(18)/(22) \\ \cos I=0.82\text{ \lparen nearest hundredth\rparen}^(\:) \end{gathered}`

Hence, the answer is 0.82 (nearest hundredth)