3.1

“I Can draw circles, and identify and determine relationships among the radius, diameter, center, and circumference.”

Vocabulary

• Circle - _________ degrees

• Center Point - Very Center of a ______.

Diameter

• Diameter - is the length of a line segment passing through the ________ _________ of the circle, with endpoints on the circle.

• The diameter is ___ time bigger than the _________.

Radius

• Radius - Goes from the center point out to any point on the ________.

• The radius is 1/2 the size of the __________.

Circumference

• Circumference - is the distance around a circle. It could be called the ________ of a circle.

• The circumference is about 3x bigger than the __________.

Chord

• Chord - A line segment that does not go through the _______ point of a circle.

Complete the Following Steps!

• 1. Mark the center point and label it C (Red)• 2. Draw a radius (Blue). Mark it as 5 meters• 3. Draw a diameter (Purple). Mark it as ______.• 4. Color (Outline) the Circumference (Green). Mark it as ____.• 5. Draw a chord (Orange).

• Radius =• Diameter = • Circumference =

More Vocabulary

• Dilation - to expand or get _________.

Reflection

• Reflect - _____ an object.

• Mirror

Rotation

• Rotation - _______ an object.

• Rotate the object.

Translation

• Translation - to ______ an object.

• Move it.