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Radius

[b][color=#ff0000][size=150]Line Segment AB is the radius of the circle[/size][/color][/b]
Line Segment AB is the radius of the circle
Reminder: A radius is the term for a line segment with one endpoint at the center of a circle and the other at any point on the circumference of that circle.

Hexagons

Hexagons
A hexagon pattern is often found on soccer balls.

Are any of the segments made by the hexagon pattern in the picture above radiuses of the circle? Why or why not?

Eight slices of pizza

Eight slices of pizza

If the crust is the diameter of a circular pizza, describe the radiuses.

Ferris Wheel

Ferris Wheel

If the seats on the ferris wheel are at its circumference, describe the radiuses.

Bicycle

Bicycle

If the tires are the circumferences, describe the radiuses.

Disk Thrower

Disk Thrower

If the circumference of the circle is the path made by the disk the athlete is throwing, describe the radius.

Words that are from the same word family as the word radius:

From: Dictionary.com

From: Dictionary.com

Radial Pattern

Radial Pattern
A paver arranged these pavers using a radial pattern

Why do you think the pattern the paver used is called a radial pattern?

Radial Patterns in Nature

Radial Patterns in Nature
This cross section of a tree trunk shows radial patterns of water movement and growth lines.

Why do you think water patterns that appear in cross sections of trees follow a radial pattern?

Radial Tire

Radial Tire
One day, you may have to choose between purchasing a two ply or a radial tire. Use your knowledge of the meaning of the word radial to help you make that choice.
Image

Radiant Sunlight

Radiant Sunlight

The photo above captures a radiant sunrise. Why do you think the word radiant is used to describe this sunrise?

Radiance in art

Radiance in art
This is an artist's idea of radiance.

How are the rays of light different from the segments in the radial designs we studied earlier?

[color=#1e84cc][b][size=150]Radiance in advertising. [/size][/b][/color]
Radiance in advertising.

Why do you think Ponds used the word "radiance" in this advertisement for their face creams and serums?