A ladder is standing against the wall. If the ladder reaches a height of 12m up the wall and has its foot 5m away from it, calculate the lengthof the ladder.
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height=12m
base=5m
using Pythagoras theorem
((12)^2+(5)^2)^1/2=13m
base=5m
using Pythagoras theorem
((12)^2+(5)^2)^1/2=13m
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