# Math

In a circle O, draw chord AB such that AB = r (r is the radius) find the length of theminor arc AB.
(Tried drawing it, and it ended up having a 90 angle but it didn’t work. What do i do?)

1. 👍
2. 👎
3. 👁
1. you need a compass to do it right. Pick a point A on the circle.
Set the compass to reach to the center, then use that radius to mark where the arc intersects the circle at B.

Since all 3 sides of the triangle are the same, the angle is pi/3.
The arc s = pi/3 * r

1. 👍
2. 👎

## Similar Questions

1. ### Mathematics

If a chord of length 10cm is at a distance of 12 cm from the centre of a circle. Find the radius of the circle.

2. ### math help asap

1.which of the following is a radius of the circle a.DE b.AB C.CE 2.which of the following is a diameter of the circle a.ED b.EC c.BA 3.which of the following is a chord, but not a diameter, of the circle a.CE b.FD c.DE 4.what is

3. ### Math

A quarter-circle with radius \$5\$ is drawn. A circle is drawn inside the sector, which is tangent to the sides of the sector, as shown. Find the radius of the inscribed circle. The rest is in asymptote size( 100 ) ; // Not to

4. ### math

Is the following statement true or false? Justify your answer using what you know about diameters and chords. Every diameter of a circle is a chord. True. Every diameter of a circle is a chord. This is true because every diameter

1. ### Trig

Find the length of a chord intercepted by a central angle of 25 degrees in a circle of radius 30 feet

2. ### geometry

In a circle with centre P,a chord AB is parallel to a tangent & inersects the radius drawn from a point of contact at the midpoint of the radius .If AB=12,FIND THE RADIUS OF THE CIRCLE.

3. ### mathematics

A chord of a circle is 9cm. If its distance from the centre of the circle is 5cm,calculate the radius of the circle

4. ### Geometry

determine the radius of a circle if a 24 inch chord is 9 inches from the center

1. ### math

ABCDE is a circle with centre O. The diameter, AC, is extended to the point F so that CF = 16 cm. The line BF is the tangent to the circle at B and FDE is a straight line such that FD = 18 cm and chord DE = 14 cm (D and E are

2. ### circle

two parallel chords of length 30 cm and 16 cm are draw on the opposite sides of center of a circle of radius 17 cm find the distance between the chord

3. ### Maths

In a circle of radius 12cm a chord is drawn 3cm from the centre. Calculate the angle subtended by the chord at the centre

4. ### MATH

LENGTH OF A CHORD IS 8CM,RADIUS IS 5CM CALCULATE THE DISTANCE OF THE CHORD FROM THE CENTRE OF THE CIRCLE