Answer:
Option A 
Step-by-step explanation:
we know that
Applying the Pythagorean Theorem

where
c is the greater side (the hypotenuse)
a and b are the legs
we have
----> the height of the airplane
---> slant distance from the airport
substitute

solve for b



Answer:
The vertex is point B
Step-by-step explanation:
The vertex of the angle is where the two rays meets
<ABC ( also called < BCA) can also be called by the vertex
<B
Answer:
2/5 of an acre
Step-by-step explanation:
1/2 an acre, or 5/10 of an acre, is subtracted from 9/10 of an acre
4/10 can be simplified into 2/5 if divided by two
Answer:
2.5*10^7 thank you
Step-by-step explanation:
thank you