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Problem $11\mathrm{.}115-$ Determine direction of initial velocity for given projectile

An oscillating garden sprinkler which discharges water with an initial velocity $v_0$ of $8\frac{m}{s}$ is used to water a vegetable

garden.

Problem $11\mathrm{.}115.$b $-$ Determine direction of initial velocity and horizontal distance for given projectile

Determine the distance $d$ to the farthest point $B$ that will be watered and the corresponding angle $$ when the height $h$ of the corn is

$1\mathrm{.}8$ m and the distance from the corn plant to the sprinkler is $a=1\mathrm{.}5m.($Round the distance value to three decimal places.$)$

The distance $d$ to the farthest point $B$ is

$m$ and the angle $$ is