Ans: 720
<span>This is equal to the number of different arrangements of three persons from a group of 10 persons </span>
Required number of ways = 10P3 = 720
OR can be solved in this way
select 3 runners (10C3 ways)
These 3 runners can be arranged in 3! ways
<span>Total = 10C3×3! = 720
</span>
B or 12 would be the correct choice!
Hope this helps and mark as brainliest please!
The vertex point is (0,4)
The two other points are (-2,0)(2,0)