for 8th grade

Identify parts of the circle: arc, chord, sector, segment and tangent

Home / 8th grade / Geometry & measures / Circle / Parts of the circle 2

An arc of a circle is any part of it's circumference. Arcs are used when describing sectors and segments of circles.

A chord is a straight line that separates a circle into two parts. A chord defines two arcs on the circumference of a circle at the two points where it touches the circumference.

A sector of a circle is the area enclosed by two radii connected by an arc on the perimeter. When you think of pie charts, each wedge shaped area is a sector of the circle.

A segment of a circle is an area encolosed by an arc and a chord. If you imagine the circle as a round cheese, a segment is what you would get if you sliced through the cheese from edge to edge with a cheese wire (as long as the cheese was two-dimensional..).

A tangent is a straight line outside a circle that touches the circle at one point only. The point where the tangent touches the circle is called the point of tangency. The radius of the circle from the point of tangency is always at right angles to the tangent.

Below is a table showing the first 8 question answer pairs for the topic "Parts of the circle 2" as used in the lessons for this topic. Our games and tests for the topic use these 8 items plus 8 additional question answer pairs.

The topic "Parts of the circle 2" is in the category Geometry & measures for 8th grade (ages 13 to 14).

1 / 8

Part P of the circle is called a tangent

a tangent

2 / 8

Part P of the circle is called a chord

a chord

3 / 8

Part P of the circle is called a sector

a sector

4 / 8

Part P of the circle is called a segment

a segment

5 / 8

Part P of the circle is called an arc

an arc

6 / 8

Part P of the circle is called a sector

a sector

7 / 8

Part R of the circle is called a tangent

a tangent

8 / 8

Part P of the circle is called a chord

a chord

Home / 8th grade / Geometry & measures / Circle / Parts of the circle 2

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