Question

Find the value for the side marked below.Round your answer to the nearest tenth.21у80°y = [?]

Answer 1

`y=21.3\text{ }`

Explanation:

To find y, use trigonometric ratios or relationships, which are represented by the following diagram and equations:

Use the sin ratio to find y:

`\begin{gathered} \sin (80)=(21)/(y) \\ y=(21)/(\sin (80)) \\ y=21.32\text{ } \\ \text{ Rounding to the nearest tenth:} \\ y=21.3\text{ } \end{gathered}`