Hitunglah luas lingkaran yang jari jarinya A. 3 cm B. 14 cm

L = phi r^2
L = 3,14 × 3 × 3
L = 28,26 cm^2

L = phi r^2
L = 22/7 × 14 × 14
L = 616 cm^2

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== Jawaban ==
A.
L = π × r × r
L = 3,14 × 3 × 3
L = 28,26 cm²

B.
L = π × r × r
L = 3,14 × 14 × 14
L = 615,44 cm²

Semoga membantu