Answer: A cross section is the shape we get when cutting straight through an object.
Step-by-step explanation:

First, find the scale factor by dividing the first building's real-life height by its model height.

Now, we'll write an equation to find the model height of the second building.

Here is an equation where
represents the real-life height of a building,
represents the scale factor, and
represents the model height of the same building.
Fill in the information we already know.

Divide both sides by
.


So, the model height of the second building is
inches.
Answer:
what do you need help with
680.6/820 = 0.83
0.83 = 83%
Speed is given by the distance traveled divided by the time spent.
The net speed with which the plane traveled against the wind is given by

while the speed with which the plane travelled in the return trip is given by
Let the speed of the plane be v and the speed of the wind be w, then when the plane was traveling against the sun, we have, v - w = 168.57 and when the plane is travelling in the direction of the wind, we have, v + w = 236.
Subtracting the first equation from the second equation, we have: 2w = 236 - 168.57 = 67.43
Thus, w = 67.43 / 2 = 33.715
Therefore, the speed of the wind is approximately 33.7 mi/hr.