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UkoKoshka [18]
2 years ago
15

EXTREMELY URGENT

Mathematics
1 answer:
Ostrovityanka [42]2 years ago
6 0

Answer:

20.3 units

Step-by-step explanation:

AB/CB = BD/AB

9/CB = 4/9

CB = 9×9/4

CB = 81/4 = 20¼ units

20.25 (20.3 units correct to 1 dp)

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