$\"\"$

The values are given by the circle F, $\"\"$ and FK = 17.

$\"\"$ .

Use the pythagorean theorem to find LK.

$\"\"$ (Apply Pythagorean theorem)

$\"\"$ (Substitute $\"\"$ )

$\"\"$ (Evaluate powers)

$\"\"$ (Subtract 64 from each side)

$\"\"$ (Subtract)

$\"\"$ (Apply square root of each side)

$\"\"$

$\"\"$ (Substitute $\"\"$ )

$\"\"$ (Add) \ \

$\"\"$ (Substitute $\"\"$ )

$\"\"$ (Multiply: $\"\"$ ) $\"\"$

The value of $\"\"$ .