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La = π x r²
= 22/7 x 49 x 49
= 22 x 7 x 49
= 7546 cm²
= 22/7 × 98cm × 98cm
= 22/1 × 14cm × 98cm
= 308cm × 98cm
= 30.184cm²
Maaf kalau salah dan semoga bermanfaat