Jawab:
20. 54/90 x 60 = 36 menit
21. √144 = 12
jadi keliling = 4 x 12 = 48 cm
Penjelasan dengan langkah-langkah:
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Jawab:
20. 54/90 x 60 = 36 menit
21. √144 = 12
jadi keliling = 4 x 12 = 48 cm
Penjelasan dengan langkah-langkah: