Carpentry A plumb bob is a weight hung at the end of a string, called a plumb line.The
Chapter 3, Problem 40(choose chapter or problem)
Carpentry A plumb bob is a weight hung at the end of a string, called a plumb line.The weight pulls the string down so that theplumb line is perfectly vertical. Suppose thatthe angle formed by the wall and the roof is123 and the angle formed by the plumb lineand the roof is 123. How does this show thatthe wall is perfectly vertical?
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