Jawaban:
a. 47,1
Penjelasan dengan langkah-langkah:
Keliling 3/4 lingkaran :
= 3/4 × 2 × π × r
= 3/4 × 2 × 3,14 × 10
= 3/4 × 2 × 31,4
= 47,1
[tex]keliling \: \frac{3}{4} \: lingkaran \\ \\ r( \frac{3}{2} \pi + 2) \\ \\ r(6,71) \\ \\ 10(6,71) \\ \\ 67,1 \: {cm}^{2} \: (C)[/tex]
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Verified answer
Jawaban:
a. 47,1
Penjelasan dengan langkah-langkah:
Pembahasan :
Keliling 3/4 lingkaran :
= 3/4 × 2 × π × r
= 3/4 × 2 × 3,14 × 10
= 3/4 × 2 × 31,4
= 47,1
[tex]keliling \: \frac{3}{4} \: lingkaran \\ \\ r( \frac{3}{2} \pi + 2) \\ \\ r(6,71) \\ \\ 10(6,71) \\ \\ 67,1 \: {cm}^{2} \: (C)[/tex]