$\"\"$

Find the angle $\"\"$ .

The function is $\"\"$ .

Here, $\"\"$ feet and $\"\"$ feet/sec.

Substitute the corresponding values in $\"\"$ .

$\"\"$

If the ball travels 242 feet, $\"\"$ is $\"\"$ . $\"\"$

Consider $\"\"$ .

Apply double-angle identity : $\"\"$ .

$\"\"$

a. If the ball travels 242 feet, $\"\"$ is $\"\"$ .

b. $\"\"$ .