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.
[Graphs generated by this script: initPicture(-3,9.3808315196469+3,-3,9.3808315196469+3);path([[0,0],[9,0],[0,9.3808315196469],[0,0]]);text([9/2,9.3808315196469/2],'13','right');text([0,9.3808315196469/2],'x','left');text([9/2,0],'9','below');]
`x =`
Enter DNE for Does Not Exist, oo for Infinity
Decimal values are not allowed `2sqrt(22)`