Need help figuring out biconditional statement

For the following true conditional statement, write the converse. If the converse is also true, combine the statements as a biconditional. If x = 10, then x2 = 100. If x2 = 100, then x = 10. True; x2 = 100 if and only if x = 10. O If x2 = 10, then x = 100. False If x2 = 100, then x = 10. False If x2 = 100, then x = 10. True; x = 10 if and only if x2 = 100