How tall is the goal post if its shadow is 18ft. the height of the flagpole is 20 ft and its shadow is 8 ft.?

You can set up an inequality to solve this. You can either do big to small --> or small to big --> . I'm going to be using big to small because I think it's a little easier.

Cross multiply and you will get:

Isolate x:

x =

x = 45

The goal post is 45 feet tall. Hope this helped. Good luck. : )

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the answer

b. they are parallel and will never intersect.