PH 2 Math SDK 4 Penabur

Carefully choose the right word to label all of the different part of the circle !

e

c

d

g

f

b

a

Sector

Chord

Segment

Diameter

Arc

Center

Radius

The area inside a circle between two radii and its associated arc is called a .....

Draw a figure that shows a straight line inside the circle, joining two points in the circle without passing through the center of the circle, is ….

A chord is shown by line ….

• AB

• AC

• FG

• DE

Choose the right definition

• Radius :

  The distance from the center of the circle to its circumference

• Segment :

  The area between two radii and an arc

• Secant :

  The extension of the chord to the outside of the circle

• Tangent :

  A line that crosses the center of circle from one point to the other

  point on the circumference

The definition of the part above is …

• A part of a circle made of the arc of the circle along with its two radii

• The distance from the center of the circle to its circumference

• Segment The area between two radii and an arc

• The extension of the chord to the outside of the circle

• A line that crosses the center of circle from one point to the other

  point on the circumference

The incorrect statements are shown by number … and ….

• A chord, when extended infinitely on both sides, becomes a tangent.

• A chord is a line segment joining any two points on the circumference of the circle.

• The diameter is the longest chord of a circle, which passes through the center of the circle.

• When a chord of circle is drawn, it divides the circle into two regions, referred to as the

  sectors of the circle.

The correct statements can be found in number ....

• The radius is twice as long as diameter.

• The ratio of circumference to the diameter is called π.

• The radius is half of the diameter.

• The ratio of circumference to the radius is called π.

Mark wants to make a circle using compasses. He measures the compasses 5 cm and then

makes a circle. The diameter of the circle is …. cm

The area inside a circle between a chord and its associated arc is called ….