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1/2L lingkaran+1/2L lingkaran+L persegi pjng+L 1/2 lingkaran
L lingaran+(14×7)+1/2 phi×r kuadrat
1 phi×r kuadrat+98+1/2×22/7×7kuadrat
22/7×7/2 kuadrat+98+11×7×7 per 7
20/7×7/2×7/2+98+77
11×7 per 2 ditambah 175
77/2+175
=213,5cm kuadrat