5. Jari - Jari ( r ) = 34 cm Luas = r² = × 34² = × 1156 = 3633.143 Cm² 6. Jari - Jari ( r ) = 21 cm Luas = r² = × 21² = × 441 = 1386 Cm² 7. Jari - Jari ( r ) = 20 cm Luas = r² = × 20² = × 400 = 1257.143 Cm² 8. Jari - Jari ( r ) = 24 cm Luas = r² = × 24² = × 576 = 1810.286 Cm² 9. Jari - Jari ( r ) = 42 cm Luas = r² = × 42² = × 1764 = 5544 Cm² 10. Jari - Jari ( r ) = 38 cm Luas = r² = × 38² = × 1444 = 4538.286 Cm²
Luas= πrkuadrat = 3,14.24.24 = 3,14.576 = 1808,64
5. Jari - Jari ( r ) = 34 cm
Luas = r²
= × 34²
= × 1156
= 3633.143 Cm²
6. Jari - Jari ( r ) = 21 cm
Luas = r²
= × 21²
= × 441
= 1386 Cm²
7. Jari - Jari ( r ) = 20 cm
Luas = r²
= × 20²
= × 400
= 1257.143 Cm²
8. Jari - Jari ( r ) = 24 cm
Luas = r²
= × 24²
= × 576
= 1810.286 Cm²
9. Jari - Jari ( r ) = 42 cm
Luas = r²
= × 42²
= × 1764
= 5544 Cm²
10. Jari - Jari ( r ) = 38 cm
Luas = r²
= × 38²
= × 1444
= 4538.286 Cm²