Direction: Fill in the blank with the correct answer. Choose your answer from the box below.
(Questions nos. 15-18)
An arc
a circle
parallel lines
oval
a picture plane
15. Are lines equidistant from each other at all points
16. It is a plane figure bounded by a circumference which is equidistant from a common point, the center is called
17. It is a portion or a segment of a circumference of a circle is called
18. It is an imaginary flat surface wherein the top view must be drawn and viewed) is called​