Question

21.Find the indicated angle measure to the nearest degree.1613?А.510B. 39С C36549

Answer 1

using trigonometric ratio,

let

the unknown angle = x degrees

`\tan x=\frac{opposite}{\text{adjacent}}`
`\begin{gathered} \tan x=(13)/(16)^{} \\ x=\tan ^(-1)0.8125 \\ x=39.0938588862 \\ x\approx39^(\circ) \end{gathered}`