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4.) The plane continued to descend, but leveled off to an angle of descent of 30 degrees for

approximately 2 miles. How many feet did they drop in altitude (d)?

1 Answer

1 vote

Answer:

Plane dropped 6097 feet in altitude.

Explanation:

In the figure attached,

An airplane is at point A from where it continued to descend by 30° for an approximate distance of 2 miles

∠ACB = Angle of descent = 30°

Distance BC = 2 miles

Let the plane dropped the altitude = h miles

Now tan 30° =
(h)/(2)


(1)/(√(3))=(h)/(2)


h=(2)/(√(3))

h = 1.155 miles

h ≈ 1.16 miles

Since 1 mile = 5280 feet

1.15 miles = 5280×1.16 feet

= 6097 feet

Therefore, the plane dropped by 6097 feet vertically.

4.) The plane continued to descend, but leveled off to an angle of descent of 30 degrees-example-1
User Ovidiu Nistor
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