1.
Keliling
π×d=
3,14×8=
25,12 cm
Luas
π×r²=
3,14×4²×1 cm²=
50,24 cm²×1 cm²=
50,24 cm²
2.
3,14×12=
37,68 cm
3,14×6²×1 cm²=
113,04 cm²×1 cm²=
113,04 cm²
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1.
Keliling
π×d=
3,14×8=
25,12 cm
Luas
π×r²=
3,14×4²×1 cm²=
50,24 cm²×1 cm²=
50,24 cm²
2.
Keliling
π×d=
3,14×12=
37,68 cm
Luas
π×r²=
3,14×6²×1 cm²=
113,04 cm²×1 cm²=
113,04 cm²
3,14×8
=25,12 cm
Luas=π×r²
3,14×8×1=25,12cm²
2.keliling=3,14×12
37,68
luas=3,14×12×1
37,68cm²
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