Question

What ratio of sides from AADE defines tan 19° ?

Answer 1

`\large \sf \boxed{ \sf (DE)/(AD) }`

Step-by-step explanation:

`\sf tan(x) = (opposite)/(adjacent)`

Here given angle: 19°

Opposite to this angle: DE

Adjacent to this angle: AD

Hypotenuse to this angle: EA

So ratio of sides that defines tan(19) = opposite/adjacent = DE/AD