Answer:
x² + y² = z²
Step-by-step explanation:
(a)
Using the right triangle altitude theorem,
x/z = p/x
x² = pz
(b)
y/z = q/y
y² = qz
(c)
x² + y² = pz + qz
x² + y² = z(p + q)
z = p + q
x² + y² = z × z
