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UKMT Grey Kangaroo, 2016

Geometry Difficulty 2.0 Junior Find the answer United Kingdom

Inside a square of area $36\text{ cm}^2$ , there are shaded regions as shown. The total shaded area is $27\text{ cm}^2$ . What is the value of $p+q+r+s$ ?

(A) $4$ cm (B) $6$ cm (C) $8$ cm (D) $9$ cm (E) $10$ cm

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