A rectanglur acrylic sheet is 36cm by 25 cm from it 56 circular buttons each of diameter 3.5cm have been cut out. Find the area of the remaining sheet
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area of the remaining sheet =
area of rectangular sheet - area of 56 circular buttons
Now, area of the rectangular sheet = l × b
=> 36 × 25
= 900 cm sq
area of 1 circular button = πr^2
=> 22/7 × 1.75 × 1.75
=> 9.625 cm sq
therefore, area of 56 circular buttons = 9.625 × 56
=> 539cm sq
Now, area of remaining sheet = 900 - 539
=> 361 cm sq
Hope this helps.... :-)
area of rectangular sheet - area of 56 circular buttons
Now, area of the rectangular sheet = l × b
=> 36 × 25
= 900 cm sq
area of 1 circular button = πr^2
=> 22/7 × 1.75 × 1.75
=> 9.625 cm sq
therefore, area of 56 circular buttons = 9.625 × 56
=> 539cm sq
Now, area of remaining sheet = 900 - 539
=> 361 cm sq
Hope this helps.... :-)
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