Jawab:panjang busur AB = 72/360 x 22/7 x 2 x 35
= 1/5 x 2 x 22 x 5
= 44 cm
r = 35 cm
@ = 72°
luas juring AOB
L = @/360 × π × r²
L = 72/360 × 22/7 × 35²
L = 1/5 × 22/7 × 1225
L = 22/35 × 1225
L = 22 × 35
L = 770 cm²
luas juring AOB adalah 770 cm²
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Jawab:panjang busur AB = 72/360 x 22/7 x 2 x 35
= 1/5 x 2 x 22 x 5
= 44 cm
r = 35 cm
@ = 72°
luas juring AOB
L = @/360 × π × r²
L = 72/360 × 22/7 × 35²
L = 1/5 × 22/7 × 1225
L = 22/35 × 1225
L = 22 × 35
L = 770 cm²
luas juring AOB adalah 770 cm²