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Lp = 4. 22/7. 14² = 2464 cm²
b.
Lp = 4. 22/7. (7/2)² = 154 cm²
Luas Bola
= 4πr²
= 4 x x 14 x 14
= 4 x 22 x 14 x 2
= 2464 cm²
b.
Luas bola
= πd²
= x 7 x 7
= 22 x 7
= 154 cm²