3. RUMUS LUAS JURING :
= 45°/360° × 22/7 × 7 × 7
= 45°/360° × 154
= 6930 : 360
= 19,25°
4. RUMUS PANJANG BUSUR :
= 45°/360° × 2 × 22/7 × 7
= 45°/360° × 44
= 1980 : 360
= 5,5°
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3. RUMUS LUAS JURING :
= 45°/360° × 22/7 × 7 × 7
= 45°/360° × 154
= 6930 : 360
= 19,25°
4. RUMUS PANJANG BUSUR :
= 45°/360° × 2 × 22/7 × 7
= 45°/360° × 44
= 1980 : 360
= 5,5°
(semoga membantu & bermanfaat)