Carilah Nilai Sisi Af

Carilah nilai sisi AF

 

Jawab:

AF = √(314 cm²) ≈ 17,72 cm

Penjelasan dengan langkah-langkah:

DF² = EF² - DE²

DF² = (20 cm)² - (6 cm)²

DF² = 400 cm² - 36 cm²

DF² = 364 cm²

CF² = DF² - CD²

CF² = 364 cm² - (5 cm)²

CF² = 364 cm² - 25 cm²

CF² = 339 cm²

BF² = CF² - BC²

BF² = 339 cm² - (4 cm)²

BF² = 339 cm² - 16 cm²

BF² = 323 cm²

AF² = BF² - AB²

AF² = 323 cm² - (3 cm)²

AF² = 323 cm² - 9 cm²

AF² = 314 cm²

AF = √(314 cm²) ≈ 17,72 cm