Three centred arch- (a)Elliptical arch-It is the form of semi ellipse, Two centres are used for making up the ends and the third is used to draw the central position. (b)3 centred drop arch-procedure here is reversed. Ends of the arch formed by arc, central portion is drawn by the other 2 centres. - Study24x7
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soyab khan
03 Apr 2019 11:54 AM study24x7 study24x7

Three centred arch- (a)Elliptical arch-It is the form of semi ellipse, Two centres are used for making up the ends and the third is used to draw the central position. (b)3 centred drop arch-procedure here is reversed. Ends of the arch formed by arc, central portion is drawn by the other 2 centres.

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