Hitunglah keliling di bawah ini !

<p><strong>Rumus Keliling Lingkaran : 2 π r&nbsp;</strong> &nbsp;</p><p>keliling 1/4 = 1/4 (2 π r ) + 2 r</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;= 1/4 (2 × 22/7 × 14) + (2 × 14)</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;= (1/4 × 88) + 28</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;= 22 + 28</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;= 50 cm</p><p>&nbsp;</p><p>Jadi keliling lingkaran tersebut adalah 50 cm</p>