Which Line Is Called As Chord?

Is a radius a chord?

Any segment which connects two different points on a circle is a chord.

The radius of a circle connects the centre and one point on the circle.

Hence a radius cannot be called a chord..

What are the 8 parts of a circle?

The following figures show the different parts of a circle: tangent, chord, radius, diameter, minor arc, major arc, minor segment, major segment, minor sector, major sector.

How do you name a circle?

Summary: A circle is a shape with all points the same distance from its center. A circle is named by its center. The parts of a circle include a radius, diameter and a chord. All diameters are chords, but not all chords are diameters.

What means chord?

A line segment connecting two points on a curve. Example: the line segment connecting two points on a circle’s circumference is a chord. When the chord passes through the center of a circle it is called the diameter.

What are the properties of chord?

Chord Property. The perpendicular from the centre of a circle to a chord bisects the chord. In the figure below, the line through the centre of the circle and the chord of the circle are perpendicular. As a result, the chord is bisected by the line.

What is the definition for radius?

1 : a line segment extending from the center of a circle or sphere to the circumference or bounding surface. 2a : the bone on the thumb side of the human forearm also : a corresponding part of vertebrates above fishes.

Is a chord a straight line?

A chord is a straight line inside the circle that touches the circumference at 2 points but does not touch the centre of a circle. A tangent is a straight line outside the circle that touches the circumference at one point only.

How do you represent a line?

A line segment is represented by end points on each end of the line segment. A line in geometry is represented by a line with arrows at each end. A line segment and a line are different because a line goes on forever while a line segment has a distinct beginning and end.

What is line and example?

The definition of a line is a mark connecting two points, something stretched between two things, or two or more people standing in a row. An example of a line is a horizontal mark drawn on a piece of paper. An example of a line is caution tape marking off the scene of an accident. An example of a line is fishing wire.

What’s the mathematical name for a straight line?

Diameter: Any straight line that passes through the centre of the circle to two points on the perimeter. Radius: Any straight line that originates at the centre of a circle and ends at the perimeter. Chord: A straight line whose ends are on the perimeter of a circle.

What is an arc?

In general, an arc is any smooth curve joining two points. The length of an arc is known as its arc length. … The center of an arc is the center of the circle of which the arc is a part. An arc whose endpoints lie on a diameter of a circle is called a semicircle.

What degrees is a straight line?

The angles W and X form a straight line, added together together they measure 180 degrees.

Can a chord be shorter than a radius?

A diameter is always a chord. … A chord can be longer than a diameter of the same circle. A chord can be shorter than a radius of the same circle. A radius is always congruent to another radius of the same circle.

Is a chord a secant?

Chord is a line segment joining two points on the circle, while secant is a line ‘l’ intersecting the circle in two distinct points.

What is a straight line touching a circle called?

A chord is a straight line joining two points on the circumference of a circle. An arc is a part of the circumference of a circle. A segment is an area enclosed by a chord and an arc. A sector is an area enclosed by two radii and an arc. A tangent is a straight line which touches the edge of a circle once.

What is a chord length?

A chord is a line segment connecting any two points on the circumference of a circle. … You can also calculate chord length if you know both the radius and the length of the right bisector, which is the distance from the center of the circle to the center of the chord.

Is a chord a ray?

Chords: A chord of a circle is a segment that you draw from one point on the circle to another point on the circle. A chord always stays inside the circle. … Tangent: A tangent to a circle is a line, ray, or segment that touches the outside of the circle in exactly one point. It never crosses into the circle.

What is the formula for chord length?

Chord Length FormulaFormula to Calculate Length of a ChordChord Length Using Perpendicular Distance from the CenterChord Length = 2 × √(r2 − d2)Chord Length Using TrigonometryChord Length = 2 × r × sin(c/2)

Can a secant be a ray?

A secant is a line, ray, or line segment that intersects a circle in two places.

Why is diameter the longest chord?

The diameter of a circle is considered to be the longest chord because it joins to points on the circumference of a circle. In the circle below, AB, CD, and EF are the chords of the circle. Chord CD is the diameter of the circle.

What is the formula of chord?

Finding the Length of a Chord Using the formula, half of the chord length should be the radius of the circle times the sine of half the angle. Multiply this result by 2. So, the length of the chord is approximately 13.1 cm.