A staircase 13m long is placed against a wall in such a way that the foot of the staircase is 5m away from the wall. Find how high the top of the staircase reaches on the wall
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Answer:
the answer is 12m
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Answer:
use Pythagoras theorum
hypotenuse = 13 m
base = 5m
lenght is to be calculated
(13)^2 = (5)^2 + (lenght)^2
169-25 =( lenght)^2
√144 = lenght
12 m = lenght of staircase.
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