CIRCLES

In circle A, the segment

 $\overline{CB}$  is: 

• A radius 

• An arc

• A central Angel 

• A diameter

Say whether the following statement is true or false:

"The diameter is a specia chord"

• True

• Falso

If the diameter of a circle is 10cm. How long is the radius?

• 5cm

• 5m

• 20cm

• 20m

the following figure represents:

• A central angle

• A diameter

• An arc

• A chord

If the radius of a circle is 15m. How long is the diameter?

• 30m

• 30cm

• 7.5cm

• 7.5m

The following picture shows:

• Two radii

• Two radius

• A chord

• A diameter

The following picture shows:

• A chord

• A diameter

• A radius

• An arc

The picture shows

• An arch

• A chord

• A diameter

• A radius

False or true:

A diameter divides the circle into two semicircles

• False

• True

If the radius of a circle is 6cm. How long is its the diameter of the circle?

• 12cm

• 12m

• 3cm

• 3m