Gre what is the length in feet of a ladder 24 feet from the foot of a building that reaches 18 feet
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Step-by-step explanation. Let the distance between ladder and building =PQ=24
The height of building=PR=18
By Pythagoras theorem: QR²=PQ²+PR²
=24²+18²
=576+324
=900
QR=√900
=30
The length of ladder is 30 feet
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