Question

A 16 foot ladder rests against the side of a house and the base of the ladder is 4 feet away. How high above the ground is the top of the ladder? Round to the nearestt tenth of a foot. A. 15.5 feet B. 16.5 feet C. 20 feet D. 240 feet

Answer 1

Your answer is gonna be A. Or 15.5 feet!

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Answer 2

First you use the Pythagorean theorem, you take 16squared minus 4squared equals b squared. 16 squared will equal 256 and 4 squared will equal 16.
256 minus 16 is 240, take the square root of 240 and you get, (with rounding to the nearest tenth), 15.5 feet