Am i right? please hurry!!

Match the term on the left with its image or description on the right. match term definition diameter a) circle a and a line segment connecting points b and c which are on the circle. circumference b) circle a and a line segment connecting points b and c which are on the circle. radius c) a piece of the circumference of a circle secant d) two circles that share the same center. concentric circles e) the distance around a circle arc f) a segment between two points on a circle that passes through its center

The multiplication property of zero states that the product of any number and 0 is 0. what must be true about either a or b to make ab=0

Anna is constructing a line segment that is congruent to another segment ab. for the construction, which tool should be used to mesure segment ab