# Geometry

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If AB= 9 centimeters and BC= 12 what does Ac equal ? and it is a right triangle .

• Geometry -

a^2 + b^2 = c^2

9^2 + 12^2 = c^2

81 + 144 = c^2

225 = c^2

15 = c

• Geometry -

3.5

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