Tentukan:
a. Panjang BD
b. Luas segitiga ABC
Jawab:
Penjelasan dengan langkah-langkah:
AD = 16 cm
CD = 9 cm
Option a :
BD² = AD × CD
BD² = 16 × 9
BD² = 144
BD = √144
BD = 12 cm
Option b :
Luas ΔABC
= 1/2 × a × t
= 1/2 × AC × BD
= 1/2 × 25 × 12
= 150 cm²
BD = √16×9
BD = √144
BD = 12cm
Luas = 1/2 x 12 x 25 = 150cm²