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