π = 22/7 luas daerah yg diarsir sama dengan..... cm
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Jawaban:
231 cm^2
Penjelasan dengan langkah-langkah:
r = jari-jari = 21 cm
pi = 22/7
Luas lingkaran :
L = pi × r^2
= 22/7 × (21^2)
= 1386 cm^2
Luas juring oleh sudut 60°
L j = 60° / 360° × 1386
= 1/6 × 1386
= 231 cm^2