Question 11
ABCD is a square of side 30 cm. Two circles centred at B and C intersect at M as shown. Find the white area in cm², taking π=3.14.

Pictured convention made explicit: the B-centred arc passes through A and the C-centred arc through D.

Pictured convention made explicit: the B-centred arc passes through A and the C-centred arc through D.