tolong ya kak di isi nya yang betul
rumus panjang sisi persegi
S = K ÷ 4
1. A. k = 72cm
s = 72 ÷ 4 = 18 cm
B. k = 90 cm
s = 90 ÷ 4 = 22.5 cm
C. k = 144cm
s = 144 ÷ 4 = 36cm
D. k = 180cm
s = 180 ÷ 4 = 45
rumus keliling persegi
K = S × 4
2. A. s = 6cm
k = 6 × 4 = 24cm
B. s = 2 cm
k = 2 × 4 = 8cm
C. s = 8cm
k = 8 × 4 = 32cm
vote ya
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