10) W, is a window against which a ladder
8.5 m long rests. The height of the
window is 7.5 m from the ground.
Without moving the bottom of the
ladder, it is turned around to rest against
a window W, on the opposite wall. If the
height of window W, is 4 m above the
ground, find the distance between the
walls.
2.
W1
W2
+
7.5 m
8.5 m
4 m
F1
G
F2
od 75 m
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