Maaf tadi ngeblur , tolong yg bisa jawab

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Maaf tadi ngeblur
tolong yg bisa jawab​

a. 21 cm

b. 8 cm

c. 17 cm

Penjelasan dengan langkah-langkah:

a. y² = 29² – 20²

= 841 – 400

= 441

y = √441 = 21 cm

b. y² = 10² – (12:2)²

= 100 – 6²

= 100 – 36

= 64

y = √64 = 8 cm

c. y² = 8² + (20-5)²

= 64 + 15²

= 64 + 225

= 289

y = √289 = 17 cm


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