Missing lengths of a 45°-45°-90° Special Right Triangle given Hypotenuse length = 15

Leg lengths of a 45°-45°-90° Special Right Triangle are equal
Leg lengths =
Hypotenuse length/2

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

The solution above and all other related solutions were provided by the 45°-45°-90° Special Right Triangle Application