Answer :

Altitude of jet is 274.6ft if it will make average of 3 degree angle of descent.

Given is that angle of decent is 3degree.

Ground distance to the airport is 5280.

angle of decent is also known as angle of elevation.

if we consider a triangle ABC ⊿  angle B as 90 degree.

A at left  and C at top.

angle A is known as angle of elevation we can use [tex]\theta[/tex] for angle of elevation.

distance to the airport is known as base of the right angle triangle.

we have asked about the altitude of right-angle triangle.

altitude is known as the height in right angle triangle.

we know the tangent formula.

The tangent of an angle in trigonometry is the ratio of the lengths of the adjacent side to the opposing side. To put it another way, it is the proportion of a sine to a cosine function at an acute angle such that the cosine function's value should not be zero.

tan[tex]\theta[/tex] =  Altitude/Base

Altitude  = tan[tex]\theta[/tex]* Base

= tan3 * 5280

= 0.052*5280

=274.6

So the altitude is 274.6ft

Given Question is incomplete complete Question here:

When landing, a jet will average a 3 degree  angle of descent. Find the altitude of a jet on final descent if its ground distance to the airport is 5280 /t

To know about the angle of descent here:

https://brainly.com/question/23243593

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