Becz two direction in x dir & y dir.
No one axies perpendicular to the paper.
That's why we call circle is 2D figure.
Written on Dec. 5, 2017, 1:16 p.m.
Becz two direction in x dir & y dir.
No one axies perpendicular to the paper.
That's why we call circle is 2D figure.
Written on Dec. 5, 2017, 1:16 p.m.