Jawaban:
B.74cm
Penjelasan dengan langkah-langkah:
K lingkaran=π×d×1/2
=22/7×14×1/2
=22
K persegi panjang=21+12+12+7
=52
total=22+52=74
diameter=21-7=14
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Jawaban:
B.74cm
Penjelasan dengan langkah-langkah:
K lingkaran=π×d×1/2
=22/7×14×1/2
=22
K persegi panjang=21+12+12+7
=52
total=22+52=74
diameter=21-7=14