Question

ABCD is a square plate of 1 m length. As shown in figure circles are drawn with their center at A, B, C, D respectively, each with radius equal to 42 cm. The blue coloured part at each corner, as shown in the figure 13.22 is cut. What is the area of the remaining portion of the plate?

Answer 1

1m=100cm
(100)^2-πr^2
10000-22/7 ×42×42
10000×22×6×42
10000-5544
4456cm^2
0.4456m^2