9. The figure given is made up of a rectangle, identical semicircle(s) and quadrant (s). What's the area of un- shaded region? Use π=22/7
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naka my phone is on the phone with my mom is going to be there for me to do with it but
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22/7x((21^2)/2 +(42^2)/4 -(21^2)/2)= 3x42x11=1386
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