Answer:
10.5 meters
Explanation:
in their starting position all three dancers form a right triangle with legs equal to 2m and 4m.
Jada to Ken = 4m
From Ken's position to Trisha's, Jada goes another 2
m*
From Trisha's position to her original position, Jada goes another 2m
* to get this value: 2² + 4² = x²
x² = √20 = 2√5