1.

i, te rate ot poising 1sa circular card sheet of radius 28 cm, two circles of radii 7 cm and a rectangle of length 3 cm andFrom a& readth 2 cm are removed. Find the area of remaining sheet.

Answer»

area of circular card sheet =πr^2=22/7× 28×28=2464 sq.cmNow, area of two smaller circles that was cut=2×π ×r^2=2×22/7×7×7=308sq.cmThen, area of rectangle that was cut= L×B=3×2=6sq.cm

hence,the area of remaining sheet = area of circular card sheet - area of two smaller circles+area of rectangle= 2464-308+6=2152sq.cm



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