Compare and Contrast Area and Circumference. What are their similarities? What are their differences? When might I use them?

1. A chord is any line segment between two points on a circle.

2. A central angle is an angle between two radii in a circle.

3. An arc is a part of a circle's circumference between two points.

4. A sector is a region of a circle between two radii.

5. A segment is the smallest part of a circle you get when this is cut by a line.

By comparing these concepts we realize that they are related to circles. For instance, a segment comes up from cutting a circle by a line, and this line is a chord. On the other hand, whenever two lines, rays or line segments meet, they form an angle. The measure of an angle is found when y rotating one of the lines so it lies on the top of the other. So the central angle comes up from the lines between the radii of a circle. All the concepts are related to each other by the concept of circles, but they are different because they measure different things. For instance, the length of a chord can be measured in unit of length while the sector can be measured unit of area.

tell me if its confusing

b) the dogs need to shift their focus to human scent.

109 is the nearest whole number/final answer! : )