Aladder that is 30 ft long needs to reach 27 ft up a building. what should the angle of the vertical be?

64.16^{\circ} or 1.12 radians

Step-by-step explanation:

Given statement : A ladder that is 30 ft long needs to reach 27 ft up a building.

Since, building stands  vertical on the ground , so ladder will make a riaght angle.

So, hypotenuse side = 30 ft.

the side apposite to the angles of the elevation =27 ft

Let x be the angle of elevation.

We know that in a right triangle :-

option a is correct.

step-by-step explanation:

scale factor: it is used to find proportional measurements.

proportions means having the same ratio.

scale factor is the ratio of the model measurement to the actual measurement in a simplest form.

or we can say that the ratio of any two corresponding lengths in two similar geometric figures

if the scale factor is more than 1, then it is an enlargement,

if the scale factor less than 1, then it is a reduction.

given the two geometric figure:

by definition of proportions, we have

15.36 per mile

but forgot to round

i am pretty sure