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The side length of a square seat cushion is 70‾‾‾√ square inches. Determine whether the side length is rational or irrational. Then explain your reasoning.
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The side length of a square seat cushion is 70‾‾‾√ square inches. Determine whether the side length is rational or irrational. Then explain your reasoning.

User Foibs
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the square root of 70 is irrational:

70 is not α perfect square, it is inbetween 64 and 81

the square root cannot be be α natural number (rational)
User Dmondark
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