Answer: 20 ft
Step-by-step explanation:
Given: The length of rope tied to the top of a flag pole=29 ft
The distance between base of the pole and the point on ground where the rope is stacked= 21 ft
Let x be the height of flagpole.
Now, we can see the figure that the given situation represents a right triangle
Where longest side= 29
By Pythagoras theorem of right triangle, the square of the longest side is equal to the sum of the squares of the other two sides.
Hence, the height of flagpole = 20 ft.
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