help

Question

help

anonymous · Answer

attachment

mathstudent55 · Answer

This is a simplified view of what you have.
|dw:1398838414590:dw|

mathstudent55 · Answer

Large triangle in black.
|dw:1398838504224:dw|

mathstudent55 · Answer

Small triangle in black.
|dw:1398838576167:dw|

mathstudent55 · Answer

What is the relationship between the large triangle and the small triangle?

anonymous · Answer

im not really sure of the right term but the smaller triangle is like the same thing as the bigger one just divided by 6 i think ,

mathstudent55 · Answer

Right. The term you are looking for is similar triangles.

mathstudent55 · Answer

Since the triangles are similar, the lengths of corresponding sides are proportional.

mathstudent55 · Answer

Just be careful with the numbers.
In the large triangle, the bottom side measure 48 m + 8 m = 56 m

mathstudent55 · Answer

Since the bottom side of the large triangle measures 56 m, and the corresponding side of the small triangle measures 8 m, the large triangle is 7 times larger than the small triangle. That means the building is 7 times taller than the flagpole. The building is 91 m tall. How tall is the flagpole?

anonymous · Answer

13m ?

mathstudent55 · Answer

Correct.