From a rectangular plastic sheet 4m by 3m how many square peices of 20cm side can be cut out?

Assuming that the cut does not remove any material, you have a sheet that has twenty 20cm divisions on one side and fifteen 20cm divisions on the other





Fifteen times twenty is....300From a rectangular plastic sheet 4m by 3m how many square peices of 20cm side can be cut out?
= 300 pieces can be cut out ..





You have the area of the plastic sheet = 12 m^2


And area of one piece = 0.04 m^2





So :


12 / 0.04 = 300 piecesFrom a rectangular plastic sheet 4m by 3m how many square peices of 20cm side can be cut out?
area of total sheet=l*b=4*3=12m2


area of one sq.=0.2*0.2cm2=0.04m^2


no. of sq.=12/0.04


300squares
Area of plastic sheet in cm:


= 4(100) * 3(*100)


= 400 * 300


= 120,000





Area of square pieces:


= 20^2


= 400





Solution:


= 120,000 / 400


= 300





Answer: 300 pieces
since they have different units, we need to convert the dimensions of the rectangular plastic sheet to cm.





area of rectangular plastic sheet = (400cm)(300cm) = 120000 sq. cm





area of square pieces = (20cm)(20cm) = 400 sq. cm





120000/400 = 300 square pieces..





hope it helps you a lot..





=)