From each extremity of each of these two lines, draw a semi-circle to more or less follow the outside curvature of the disc to meet the other extremity of the same four-inch line.
Kwincam nganye yale migca mibini zoba isangqa esiphakathi ukongeza okanye ukulandela kancinci ubugophe ngaphandle becwecwe ukukhawulelana nencam yomgca ofanayo wee-intshi ezine