Hitunglah nilai Y pada setiap segitiga siku-siku berikut! Tolong bantu ya kak,,,,

A
(4y)² + (3y)² = 10²
16y² + 9y² = 100
25y² = 100
y² = 100/25
y² = 4
y = √4
y = 2

B
y² + y² = 8²
2y² = 64
y² = 64/2
y² = 32
y = √32
y = √(16x2)
y= 4√2

C
(4y)² + 12² = (5y)²
16y² + 144 = 25y²
25y² - 16y² = 144
9y² = 144
y² = 144/9
y² = 16
y = √16
y = 4

D
y² + (8√2)² = (3y)²
y² + (64x2) = 9y²
y² + 128 = 9y²
9y² - y² = 128
8y² = 128
y² = 128/8
y² = 16
y = √16
y = 4