A boy visiting Chicago views the Sears Tower from a point on the ground which is 1,240 feet from the base of the building. The angle of elevation from the boy to the top of the building is 49°. What is the height of the building to the nearest foot? ​

"image"

step-by-step explanation:

in most of these problems, the notation is that the point with a "prime" is the image of the point without. that is, b' is the image of b.

here, there is no dilation or reflection. there is simply translation (with no direction shown). which figure you call the "preimage" and which one you call the "image" is up to you. as a matter of convention, the naming is as described above.

3100

step-by-step explanation: