Answer:
x = 20 units
Step-by-step explanation:
Using the Altitude- on- Hypotenuse theorem
( leg of Δ SRQ )² = (part of hypotenuse below it ) × ( whole hypotenuse ), so
x² = 16 × (16 + 9) = 16 × 25 = 400 (take the square root of both sides )
x = [tex]\sqrt{400}[/tex] = 20
