3 years ago

What is the length of AB? 15 9 4.5 18

Mathematics

2 answers:

Otrada [13]3 years ago

5 0

Answer:

Step-by-step explanation:

Let X be the midpoint of the chord AB

Distance between X and the centre:

15-3 = 12

XB² = 15² - 12²

XB² = 81

XB = 9

AB = 2XB = 18

Ivan3 years ago

4 0

Answer:

4.5

Step-by-step explanation:

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