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 =
15/√2
Rationalize to remove the radical from the denominator:
Leg lengths =
15 * √2/√2 * √2
Leg lengths =
15√2/2
= 7.5√2 = 10.606601717798