Jawaban:
k: ½ × 2 × phi × r
= ½ × 2 × 3,14 × 20
=62,8
L: ½ × phi × r²
= ½ × 3,14 × 20 × 20
= 628
semoga membantu
maaf kalau salah :/
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Jawaban:
k: ½ × 2 × phi × r
= ½ × 2 × 3,14 × 20
=62,8
L: ½ × phi × r²
= ½ × 3,14 × 20 × 20
= 628
semoga membantu
maaf kalau salah :/