3 Perhatikan gambar dua buah segitiga siku- siku ABC dan ABD berikut
panjang CD adalah...
panjang CD adalah...
![](https://id-static.z-dn.net/files/d4f/7f347faf37945ff8c12902deb1dc9eae.jpg)
AD² = BD² - AB²
AD² = 20² - 12²
AD² = 400 - 144
AD² = 256
AD = √256
AD = 16 cm
CD = AD - AC
= 16 - 9
= 7 cm
[answer.2.content]AD² = BD² - AB²
AD² = 20² - 12²
AD² = 400 - 144
AD² = 256
AD = √256
AD = 16 cm
CD = AD - AC
= 16 - 9
= 7 cm
[answer.2.content]