Penjelasan dengan langkah-langkah:
gunakan rumus teorema phytagoras
= √BC² - EC²
= √15² - 9²
= √225 - 81
= √144
= 12 cm
EB = AD
AD = 12 cm (c)
AD
AD² = BC² - (CD - AB)²
AD² = 15² - (17 - 8)²
AD² = 225 - 9²
AD² = 225 - 81
AD² = 144
AD = √144
AD = 12 cm (opsi C)
Jadi, panjang AD adalah 12 cm.
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Penjelasan dengan langkah-langkah:
gunakan rumus teorema phytagoras
= √BC² - EC²
= √15² - 9²
= √225 - 81
= √144
= 12 cm
EB = AD
AD = 12 cm (c)
Diketahui
Ditanya
AD
Penyelesain
AD² = BC² - (CD - AB)²
AD² = 15² - (17 - 8)²
AD² = 225 - 9²
AD² = 225 - 81
AD² = 144
AD = √144
AD = 12 cm (opsi C)
Kesimpulan
Jadi, panjang AD adalah 12 cm.