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The length of one side of a right triang...

The length of one side of a right triangle 4.5 cm and the length of its hypoteneous is 7.5 cm .Find the length of its third side.
Hint :Let the third side be x then
`X^(2)=(7.5)^(2)-(4.5)^(2)=(7.5+4.5)(7.5-4.5)=(12xx3)=36=(6)^(2)`

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