Which of the following set of conditions is fulfilled if a circle is completely outside the viewing window? a) Yc – R < Ytop Yc + R > Ybottom b) Yc – R > Ytop Yc + R < Ybottom c) Yc – R < Ytop Yc + R < Ybottom d) Yc – R > Ytop Yc + R > Ybottom
Answer: b Explanation: The set of conditions that is fulfilled if a circle is completely outside the viewing window is – Yc – R > Ytop : This condition is fulfilled if a circle is completely outside and above the viewing window. Yc + R < Ybottom : This condition is fulfilled if a circle is completely outside and below the viewing window. Here, Yc is the position of centre of circle on y axis. R is the radius of the circle. Ytop and Ybottom is the position of the top and bottom edge of the viewing window on the y axis respectively,
