Try another version of this question Get help: Box 1: Enter your answer as a number (like 5, -3, 2.2172) or as a calculation (like 5/3, 2^3, 5+4)
Find the length of the leg `x` on the right triangle below. Enter the exact value, not a decimal approximation.
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`x =`
Enter DNE for Does Not Exist, oo for Infinity
Decimal values are not allowed `3sqrt(21)`