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14-03-2021
Mathematics

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MettyMHF MettyMHF

14-03-2021

Answer:

15 is correct...

Step-by-step explanation:

Since |NB| = |HB|

So the hypotenuse is the same.

3x = x + 10

3x - x = 10

2x = 10

x = 10/2

x = 5

|KN| = x + 10

|KN| = 5 + 10

|KN| = 15

Option A

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