Jawaban:
34 cm
Penjelasan dengan langkah-langkah:
l = keliling ÷ 2 - panjang
l = 142 cm ÷ 2 - 42 cm
l = 76 cm - 42 cm
l = 34 cm
====================
mapel: matematika
kls: IV
kata kunci: keliling persegi panjang
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Jawaban:
34 cm
Penjelasan dengan langkah-langkah:
l = keliling ÷ 2 - panjang
l = 142 cm ÷ 2 - 42 cm
l = 76 cm - 42 cm
l = 34 cm
====================
DETAIL
mapel: matematika
kls: IV
kata kunci: keliling persegi panjang