Eaint Hmu's answer to PW LEE's Primary 6 Maths Geometry Singapore question.

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Eaint Hmu
Eaint Hmu's answer
1 answers (A Helpful Person)
1st
You must note that the sides of the square are all equal.
In this problem, we can find the radius of the circle if we know the side of the square, since there is a right triangle forming.