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Verified answer
Kekiling lingkaran= 2 × π × r
= π × d
= 314 cm
A ) Jari jari ( r )
= 314 cm ÷ π
= 314 cm ÷ 3,14
= 100
= 100 ÷ 2
= 50 cm
B ) Diameter
= 314 cm ÷ 3,14
= 100 cm