Answer:
Step-by-step explanation:
360² + y² = 369²
y² = 369² - 360² = 136,161 - 129,600 = 6,561
y = 81
360² + z² = 1640²
z² = 1640² - 360² = 2,689,600 - 129,600 = 2,560,000
z = 1600
