Page:Sheet Metal Drafting.djvu/34

Example of Problem 3D.

Fig. 30.

Example of Problem 3E

			Ans. 2"×16" and 4"×14"
1=2"×16"=	32		or
1=4"×14"=	56		2"×20" and 4" × 12"
Total	88	sq. in.	Ans. 88 sq. in., total waste.

Example of Problem, 3F.

(Area of sheet) 280	88. 000 (area of waste)	.314
	84.0
	04.00
	02.80
	01.200
	01.120
	0.080	Ans 31.4%, waste per sheet.

Example of Problem 3G.

88÷4=22 sq. in., waste per blank.

(Area of blank)	48	22.00	(waste)	.46	(approx.)
		19.2
		02.80
		02.88		Ans.	46%	waste per blank.