Answer:
<u>m</u><u> </u><u>is</u><u> </u><u>√</u><u>2</u>
Step-by-step explanation:

2.25 is the elevation of the plane before its decent
109 is your answer nchfiknvbi
So I have 2 answers here they are.
key: 1/3hours =20 min
221÷2=110.5÷20=5.525
221.5÷20=11.075
I hope this helps!