bantuin dong pliss isi cara juga

a)
L lingkaran
= Π r²
= 22/7 × 7²
= 22/7 × 49
= 22 × 7
= 154 cm²

b)
L lingkaran
= Π r²
= 22/7 × 14²
= 22/7 × 196
= 22 × 28
= 616 cm²

c)
L lingkaran
= Π r²
= 3,14 × 10²
= 3,14 × 100
= 314 cm²

d)
L lingkaran
= Π r²
= 3,14 × 100²
= 3,14 × 10000
= 31400 cm²

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