Find the ratio of the areas of the incircle and circumcircle of a square.
Let the side of the square be x. Then, its diagonal = 2x2=2x
Radius of incircle = x2
Radius of circum circle= 2×x2=x2
Required ratio = πx24:πx22=14:12=1:2
The lengths of the diagonals of a rhombus are 16 cm and 12 cm. Its area is:
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