An octagon is a polygon with eight sides. Which of the following this definition as a biconditional statement?
O If a polygon has eight sides, then it is an octagon
O A polygon is an octagon if and only if it has eight sides.
If a polygon is an octagon, then it has eight sides.

The second answer option:

"A polygon is an octagon if and only if it has eight sides."

Step-by-step explanation:

A biconditional statement needs to have a conditional statement and also its reverse. This is in general happening in a case of a statement with the "If-and-only-if" form.

spinning a 1, 2, or 3. option d.

step-by-step explanation: when spinning a number graph up to 4, and aiming for any number less than 3, that automatically eliminates the number 4. now you have two numbers to spin on that are less than 3, but the number 3 is included in this question because it's no greater of an number than itself. i hope this you : )