Jawab:
Penjelasan dengan langkah-langkah: 21 kali 4 = 84
259,875 cm²
Penjelasan dengan langkah-langkah:
d = 21 cm
r = 21 : 2 = 10,5 cm
L = 3/4 x L.lingkaran
= 3/4 x 22/7 x 10,5 x 10,5
= 3/4 x 346,5
= 259,875 cm²
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Jawab:
Penjelasan dengan langkah-langkah: 21 kali 4 = 84
259,875 cm²
Penjelasan dengan langkah-langkah:
d = 21 cm
r = 21 : 2 = 10,5 cm
L = 3/4 x L.lingkaran
= 3/4 x 22/7 x 10,5 x 10,5
= 3/4 x 346,5
= 259,875 cm²