Question

7. Find the measure of the angle of elevation of the sun when a boy 5 feet tall cast's a shadow

5 feet long.​

Answer 1

`45\degree`

Explanation:

We use trigonometry to find the angle of elevation.

From the diagram, the angle of elevation of the sun is
`\angle A`

Recall the mnemonics SOH CAH TOA.

`\tan A=(Opposite)/(Adjacent)`

`\tan A=(5)/(5)`

`\tan A=1`

`A=\tan^-1{1}=45\degree`

Therefore the angle of elevation of the sun is
`45\degree`

See attachment