adik membuat lingkaran dengan jari jari 7 cm . Lingkaran yang di buat berjumlah 8 lingkaran. Berapa jumlah keliling dari 8 lingkaran tersebut

<p>jawabannya adalah 352 cm.</p><p>&nbsp;</p><p>diketahui : r = 7 cm.</p><p>ditanya : keliling 8 lingkaran = ...?</p><p>Keliling 8 lingkaran = 8 × keliling lingkaran</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;= 8 × 2 × π × r</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;= 16 × 22/7 × 7</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;= 16 × 22 × 1</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;= 352 cm.</p>