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Answer:
5.8 m
Step-by-step explanation:
using formula c^2 = a^2 + b^2
whereas c is length of the ladder
b is the distance from the wall
so a will be the height of the wall the ladder reaches
so 6^2 = a^2 + 1.5^2
36 = a^2 + 2.25
a^2 = 36 - 2.25 = 33.75
x = 5.8 m