3 years ago

Please help me quickly

Mathematics

1 answer:

Assoli18 [71]3 years ago

4 0

Answer:

AB = 13.964 cm

Step-by-step explanation:

BF² = 6² + 13²

BF² = 36 + 169

BF² = 205

AB² = AF² - BF²

AB² = 20² - 205

AB² = 400 - 205 = 195

AB = 13.964 cm

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