Math 5, Quarter 3, Week 4

Math 5, Quarter 3, Week 4

*Identifying the Terms Related to a Circle

*Drawing Circles with Different Radii Using a Compass

Pre-Test

True or False

Multiple Choice

A circle is a closed plane figure made up of line segment.

• True

• False

Multiple Choice

A circle is named by its center.

• True

• False

Multiple Choice

A chord is a line segment joining two points on the circle.

• True

• False

Multiple Choice

The chord is also a diameter.

• True

• False

Multiple Choice

We can draw circles with different sizes but have the same center.

• True

• False

Compass

needed to draw an accurate circle. Place the pointed end of the compass at point O (the center of the circle) and move the pencil around until a circle is completely drawn.

Circle

a closed curve in which each point is at the same distance from the center.

Point O is the center of the circle.

Multiple Choice

A circle is a set of all points in a plane that are at a fixed distance from a point called its _____.

• a. radius

• b. arc

• c. center

• d. circumference

Multiple Choice

A line segment from the center to a point on the circle.

• a. radius

• b. arc

• c. center

• d. circumference

Multiple Choice

e length of a radius is one-half the length of a ________ of a circle.

• a. radius

• b. diameter

• c. chord

• d. circumference

Multiple Choice

It is the curved line between two points on a circle.

• a. chord

• b. arc

• c. radii

• d. circumference

Multiple Choice

An instrument used to draw circles is called _________.

• a. protractor

• b. ruler

• c. compass

• d. tape measure

Multiple Choice

Distance around the circle id called _________.

• a. arc

• b. perimeter

• c. center

• d. circumference

Multiple Choice

The plural of radius is _____________.

• a. radi

• b. radii

• c. radiuses

• d. radiuss

Multiple Choice

If the diameter is 24 cm, what is the radius of the circle?

• a. 48 cm

• b. 12 m

• c. 12 cm

• d. 24 m

Multiple Choice

If the radius of a circle is 15 dm, what is the diameter?

• a. 45 dm

• b. 30 cm

• c. 30 dm

• d. 7.5 cm