Kak tolong jawab bener, terima kasih

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Kak tolong jawab bener

terima kasih​

a. AC² = AB² + BC²

AC² = 12² + 9²

AC² = 144 + 81

AC² = 225

AC = √225

AC = 15 cm

b. AD² = AC² + CD²

AD² = 15² + 8²

AD² = 225 + 64

AD² = 289

AD = ✓289

AD = 17 cm

keterangan :

rumus phytagoras >> a² = b² + c²

a = sisi miring

b = sisi tegak

c = sisi alas

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