Penjelasan dengan langkah-langkah:
Luas juring AOB = <AOB / 360° x π r²
= 50° / 360° x 22/7 x 21 x 21
= 5 / 36 x 22 x 3 x 21
= 5 / 36 x 1386
= 5 x 38,5
= 192,5 cm²
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Verified answer
Penjelasan dengan langkah-langkah:
Luas juring AOB = <AOB / 360° x π r²
= 50° / 360° x 22/7 x 21 x 21
= 5 / 36 x 22 x 3 x 21
= 5 / 36 x 1386
= 5 x 38,5
= 192,5 cm²