Which side has a length of 10 units?

I'm not honestly for sure but i'm guessing the side G, J because it is the longest!

Hope this helps,

0Drink0Milk0

3 3/4 hours

Step-by-step explanation:Let t = the time it would take both surveyors working together

time together + time together = 1

  time alone         time alone

t  +  t  = 1       Multiply both sides of the equation by 60.

6    10

10t + 6t = 60

16t = 60

t = 3 3/4 hours