Question

Sines/ Cosines topic. In the triangle below round to the nearest tenth. Include explanation if possinle

Answer 1

By the law of sines,

`(\sin90^\circ)/(17)=\frac{\sin y^\circ}9`

`\implies\sin y^\circ=\frac9{17}`

(since
`\sin90^\circ=1`)

`\implies y=\sin^(-1)\left(\frac9{17}\right)\approx32.0`