A rectangular acrylic sheet is 18cm by 15cm. From it, 32 circular buttons, each of diameter 3.2cm have been cut out. find the area of the remaining sheet.
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Step-by-step explanation:
area of remaining sheet =area of sheet-area of total circular button
=(l×b)-(πr²)
=(18×15)-22/7(3.2/2)²
=270-8.045
=261.955
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