Question

A circle of radius 5 cm is cut out from a square piece of the remaining almunium sheet

Answer 1

area of remaining sheet=area of square-area of circle

area of square=Side²
side of square=2r
side=2×5
side=10cm
area=side×side
area=10×10
area of square=100cm²


area of circle=πr²
=22/7×5×5
=22/7×25
=550/7
=78.57

so the remaining sheet=100-78.57cm²
=21.53cm²