Jawaban:
924 cm
Penjelasan dengan langkah-langkah:
luas 1/3 lingkaran = 1/3 x (π x r x r)
= 1/3 x (22/7 x 21 x 21)
= 1/3 x 1386
= 462
= 462 x 2 = 924
Dik : r = 21
Dit : luas arsiran (2/3 lingkaran)
Jawab :
= πr² × 2/3
= 22/7 × 21 × 21 × 2/3
= 22 × 21 × 3 × 2/3
= 22 × 7 × 3 × 2
= 154 × 6
= 924cm²
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Jawaban:
924 cm
Penjelasan dengan langkah-langkah:
luas 1/3 lingkaran = 1/3 x (π x r x r)
= 1/3 x (22/7 x 21 x 21)
= 1/3 x 1386
= 462
= 462 x 2 = 924
Jawaban:
Dik : r = 21
Dit : luas arsiran (2/3 lingkaran)
Jawab :
= πr² × 2/3
= 22/7 × 21 × 21 × 2/3
= 22 × 21 × 3 × 2/3
= 22 × 7 × 3 × 2
= 154 × 6
= 924cm²