Question

Unit 8: Right Triangles & Trigonometry Homework 4: Trigonometry: Ratios & Finding Missing Sides

Answer 1

Step 1: Write out the formulae.

`\sin \theta=\frac{\text{ length of side opposite to }\theta}{\text{ length of the hypotenuse}}`
`\cos \theta=\frac{\text{ length of side adjacent to }\theta}{\text{ length of the hypotenuse}}`

Step 2: Write out the given values and substitute them into the formulae

From the diagram,

The