The altitude of an airplane is its height from the ground. When a plane is preparing to land, it loses 9 ft of altitude every second. What is the change in
altitude 9 s after the plane has started preparation for landing?
ft
Solve it

“ a line segment that has the endpoints on the circle and passes through the midpoint is called the diameter. the diameter is twice the size of the radius. a line segment that has its endpoints on the circular border but does not pass through the midpoint is called a chord. a circle is the same as 360 small circle up the number 0 . i hope this .

yep b and c r the correct got it! : )