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Mathematics, 05.10.2021 02:00 teresasaysrawr

a plank of length 4m rests against a wall 1.8m high such that 1.2m of the plank lies beyond the wall. find the angle the plank makes with the wall

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a plank of length 4m rests against a wall 1.8m high such that 1.2m of the plank lies beyond the wall...
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