UPSKILL MATH PLUS

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Four circles are drawn side by side in a line and enclosed by a rectangle as shown below.
 
YCIND_230311_5086_TN7_measurement_37.png
 
If the radius of each of the circles is \(3 \ cm\), then:
 
(i) The area of the rectangle \(=\)  \(cm^2\)
 
(ii) The area of each circle \(=\)  \(cm^2\)
 
(iii) The shaded area inside the rectangle \(=\)  \(cm^2\)