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Question

Hi,  

 

the answer is 98cmsquare

 

workint is

 

1/2 x 14 x 7x 2= 98

22/7 x 7 x 7 = 154

 

154-98 /2= 14

98-(14×2)=70

unshaded is 60+ 28 = 98.

 

please explain

 

rhank you!

Answer

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