Question $3$

$3\mathrm{.}1$ A ladder $3\mathrm{.}5$ m long is place against a perpendicular wall with its foot $1\mathrm{.}0$ m from the wall. How far $u$ the wall $($to the nearest centimetre$)$ does the ladder reach? If the foot of the ladder is now moved $30$ cm further away from the wall, how far does the top of the ladder fall?

$3\mathrm{.}2$ If $tan=\frac{7}{24},$ find the $sin$ and $cos$ in fraction form