Luas juring AOB pada gambar berikut adalah...
Luas juring ( L ) = a/360⁰ × π × r²
= 120/360 × 22/7 × 28²
= 1/3 × 22/7 × 28 × 28
= 1/3 × 22 × 4 × 28
= 1/3 × 88 × 28
= 1/3 × 2.464
= 821,33 cm²
(Almost) Impossible Integrals, Sums, and Series (Problem Books in Mathematics)
(Almost) Impossible Integrals, Sums, and Series (Problem Books in Mathematics)
Luas juring ( L ) = a/360⁰ × π × r²
= 120/360 × 22/7 × 28²
= 1/3 × 22/7 × 28 × 28
= 1/3 × 22 × 4 × 28
= 1/3 × 88 × 28
= 1/3 × 2.464
= 821,33 cm²