the area of bigger circle is equal to the sum of areas of three smaller circles having radii 3cm,4cm,12cm. find the radius of the bigger circle
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the radius of the bigger circle is3+4+12=19 the radius of the bigger circle is 19cm
dbiisc12:
your method is wrong
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3^2+4^2+12^2=r^2,get the radius r of bigger circle.
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