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K = 2 × pi × r = 2 × 22/7 × 14 = 88 cm
maka tinggal totalkan = 88 + 22 + 22 + 28 = 110 + 50 = 160 cm
semoga membantu
= 1/2 * 22/7 * 28
= 44 cm
keliling seluruhnya = 22 + 28 + 22 + 44
= 116 cm