Question

A wire is attached to the top of a 15-foot flagpole. The other end of the wire is attached to a point on the ground that is 18 feet from the bottom of a flagpole. How long is the wire? Enter your answer in the box. Round to the nearest tenth.
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Answer 1

Well, the Pythagorean Theorem states that a^2 + b^2 = c^2 when abc is a triangle, and c is the hypotenuse.  Therefore, we have a = 15 and b = 18.

15^2 = 225

18^2 = 324

Adding them, we get c^2 = 549.  So, the answer is the square root of 549, which, to the nearest tenth, is 23.4


Have fun!

Answer 2

Rounded up to 23.431 . We use the Pythagoream theory. A^2+B^2=C^
So 15^2+18^2=549 so  the answer is the square root of 549