Use similar triangles to solve the problem.
a flagpole casts a shadow of 35 ft, nearby, a 9-ft tree casts a shadow of 7 ft. what is the height of the flag
pole (in feet)?

45 ft

Explanation:

the flagpole has a base of 35 ft since a shadow is cast across the ground. the tree has a base of 7 ft and a height of 9 ft.now compare both bases of the flagpole and the tree.they do have a connection. 7 and 35. the flagpole base is 5 times bigger than the tree base. in order to find the height of the flagpole, you need to multiply the tree height by 5. so 9×5 is 45 which the answer is 45 ft.

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