I don't enough explain at ion

Determine whether the conditional and its converse are both true. If both are true, combine them as a biconditional. If either is false, give a counterexample.If an angle is a right angle, its measure is 90. If an angle measure is 90, the angle is a right angle. One statement is false. If an angle measure is 90, the angle may be a vertical angle. One statement is false. If an angle is a right angle, its measure may be 180. O Both statements are true. An angle is a right angle if (and only if) its measure is 90. O Both statements are true. The measure of angle is 90 if (and only if) it is not a right angle