hitubglah jarak kedua kota

<p>karena jarak diwakilkan dengan panjang busur, maka kita mencari panjang busur jakarta-surabaya</p><p>&nbsp;</p><p>r = 6.371 kilometer</p><p>∠jakarta-surabaya = 90°</p><p>panjang busur = <u>sudut pusat</u> × keliling lingkaran</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;360°</p><p>jarak kedua kota = &nbsp;<u>90°&nbsp;</u> × 2 × 3,14 × 6.371</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;360° &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;= 10.002,47 kilometer</p>