<h3>
Answer: 85 units ^2</h3>
Step-by-step explanation:
Using the equation 
so
and 

1999+1001=3000 1091+1009=3000 2000+1000=3000
3000-1001=1999 3000-1009=1091 3000-2000=1000
you don't have enough info, we need to know how old he was when he was twice her age, or how old she was
Length of Triangle= 2(W) +2
i dont know if im right or not.
34.1754 is the answer because if 50 km an hour is 31.0685 just add the other km's