Drril 3cm diameter 6 holes in 6cm×12cm plate what about the area of test part of plate ?
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area of 1 circle = pi r square
so area of 6 circle =6 pi r square
total drilled area=6×3.14×1.5×1.5=49.39cmsqure
area of.plate=6*12=72cm sqr
therefore remaining area = 72-49.39=22.61 cm sqr
so area of 6 circle =6 pi r square
total drilled area=6×3.14×1.5×1.5=49.39cmsqure
area of.plate=6*12=72cm sqr
therefore remaining area = 72-49.39=22.61 cm sqr
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