Respuesta :

ujalakhan18

Answer:

20

Step-by-step explanation:

Since chord AB and DE are at equal length from the centre, they are equal in length.

AB = DE

3x-7 = 5(x-5)

3x-7 = 5x-25

-7+25 = 5x -3x

18 = 2x

Dividing both side by 2

x = 9

Now

AB = 3(9)-7

= 27 -7

= 20

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