Leg lengths of a 45°-45°-90° Special Right Triangle are equal
Leg lengths =
Leg lengths =
Rationalize to remove the radical from the denominator:
Leg lengths =
Leg lengths =
Leg lengths =
Leg lengths =
9/√2
Rationalize to remove the radical from the denominator:
Leg lengths =
9 * √2/√2 * √2
Leg lengths =
9√2/2
= 4.5√2 = 6.363961030679