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1. What is the value of x? Show all of your work.

1. What is the value of x? Show all of your work.-example-1

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AB^2 + BC^2 = AC^2
AB^2 + 6^2 = square root 117^2
AB^2 + 36 = 117

Now subtract 117 from both sides
AB^2 = 81
AB = square root 81 = 9

√(81) = 9
Therefore AB is 9 cms.
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