It would help if you proofread your questions before you posted them. "if the...?"
6 3-inch diameter circles can be cut within a 6 by 9 inch sheet.
6. You are given a sheet of cardboard that is 8.0 in. x 11.0 in. How many full circles with a diameter of 3.0 inches can you cut from the cardboard? What is the percentage of waste if the
4 answers
a. At =8*11= 88 in^2 = Total area.
Ac = pi*r^2 = 3.14 * 1.5^2 = 7.07 in^2. = Area of each circle.
As = 3 * 3 = 9 in^2. = Area of a 3 in square in which the circle can be inscribed.
At/As = 88/9 = 9.78 or 9 = The number of squares = the number of circles that can be cut.
b. 9Ac Aw= 88.
63.63 + Aw = 88, Aw = 24.37 in^2 = Area wasted.
%Waste = (24.37/88)*100% = 27.7
Ac = pi*r^2 = 3.14 * 1.5^2 = 7.07 in^2. = Area of each circle.
As = 3 * 3 = 9 in^2. = Area of a 3 in square in which the circle can be inscribed.
At/As = 88/9 = 9.78 or 9 = The number of squares = the number of circles that can be cut.
b. 9Ac Aw= 88.
63.63 + Aw = 88, Aw = 24.37 in^2 = Area wasted.
%Waste = (24.37/88)*100% = 27.7
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4 answers