Asked by Mhon
Circular discs of radius 3.5cm are to be cut from a rectangular sheet of cardboard measuring 50cm by 30cm. once the disc are cut out, the remaining parts of the sheet are waste.
A. how many disc can be cut from one sheet of cardboard?
B. If % waste = waste/total area x 100,calculate the percentage waste fo this sizeof cardboard sheet.
A. how many disc can be cut from one sheet of cardboard?
B. If % waste = waste/total area x 100,calculate the percentage waste fo this sizeof cardboard sheet.
Answers
Answered by
PsyDAG
diameter = 2r
30/7 = 4
50/7 = 7
Area used = 28 * πr^2 = ?
Subtract ? from 50*30 for waste
30/7 = 4
50/7 = 7
Area used = 28 * πr^2 = ?
Subtract ? from 50*30 for waste
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