Penjelasan dengan langkah-langkah:
garis pelukis
= 4² + 8²
= 16 + 64
= 80
= √80
= 8,9 cm
= 3,14 x 4 x 8,9
= 111,784 cm²
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Penjelasan dengan langkah-langkah:
garis pelukis
s = r² + t²
= 4² + 8²
= 16 + 64
= 80
= √80
= 8,9 cm
L = πrs
= 3,14 x 4 x 8,9
= 111,784 cm²