For the construction of a deck surrounding a bay window, Tricia must cut several boards at an angle of 120 degrees. Setting up her mitre saw, she sets an angle of 30 degrees. Will this cut the wood at the correct angle? if not, what angle should she use if her mitre saw can only be moved up to 90 degrees.
7 years ago
Answered By Chris W
In my rough drawing, theta represents the angle (120 deg) that the boards need to have. X represents the angle left when you compare 120 deg to 180 deg. This x will be 60 deg. This x also represents the reference angle in quadrant II (180-120 = 60). So if Tricia wants to have 120 deg cut boards, she will need to set her saw to 60 deg.
7 years ago
Answered By Chris W
In my rough drawing, theta represents the angle (120 deg) that the boards need to have. X represents the angle left when you compare 120 deg to 180 deg. This x will be 60 deg. This x also represents the reference angle in quadrant II (180-120 = 60). So if Tricia wants to have 120 deg cut boards, she will need to set her saw to 60 deg.
Attached Whiteboard:
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