A building casts a shadow that is 8ft long. How tall is the building?
More data needed.
need more information!
To find the height of the building, we need to use the concept of similar triangles. Similar triangles are triangles that have the same shape but may differ in size. The lengths of corresponding sides in similar triangles are proportional.
Now, let's assume that the height of the building is represented by 'h' and the length of the shadow is 8ft. We can create a proportion between the lengths of the shadow and the height of the building:
height of building / length of shadow = unknown length / given length of shadow
In this case, we have:
h / 8 = unknown length / 8
Simplifying the equation, we find that the height of the building is equal to the unknown length. Therefore, the height of the building is also equal to 8ft.
So, the height of the building is 8 feet.