Bantu jawab pilihan A B C D nya kak​

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Bantu jawab pilihan A B C D nya kak​

Bantu jawab pilihan A B C D nya kak​

A. 10² = (4y)² + (3y)²

100 = 16y² + 9y²

100 = 25y²

y² = 100/25

y = √4

y = 2

B. y² + y² = 8²

2y² = 64

y² = 64/2

y² = 32

y = √32

y = 4√2

C. (5y)² = (4y)² + 12²

25y² = 16y² + 144

25y²-16y² = 144

9y² = 144

y² = 144/9

y² = 16

y =√16

y = 4

D. (3y)² = (8√2)² + y²

9y² = 128 + y²

9y²-y² = 128

8y² = 128

y² = 128/8

y² = 16

y =√16

y = 4