Define circle, radius, chord, diameter, and arc.

A circle is the set of all points in a plane that lie a fixed distance from a point called its center

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QUESTION OF

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Views #: 235
Questions #: 12
Time: 10 minutes
Pass Score: 80.0%
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Identifying Parts of a Circle

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A circle with center point O is shown below. Identify the geometric term that correctly describes the blue line segment connecting the center point O to point A on the outer boundary.

OA
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Defining a Chord

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In the diagram below, a straight line segment links point P and point Q, both situated directly on the boundary edge. What is the correct term for this line segment?

PQO
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The Diameter Property

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A circle has a known radius measurement of \(4.5\text{ cm}\). Calculate the exact length of its diameter.

Answer = (1)

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Understanding Geometric Arcs

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Look at the highlighted portion along the perimeter of the circle below. What is the correct term for a continuous, curved section of a circle's outer boundary?

XY
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The Definition of a Circle

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Complete the foundational geometric definition using the selection options below:

A circle is a collection of all points in a flat plane that are an equal distance from a fixed point called the (1).

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Matching Terminology to Components

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To complete the line match
  1. Click on an item in the first group
  2. Click on an item in the second group
  3. To delete a match, double click on a line

Terms

Diameter
Radius
Chord

Descriptions

A line segment passing through the center with both ends on the circle
A line segment connecting the center to any point on the circle
Any line segment whose endpoints reside on the outer boundary

Match each standard vocabulary word below to its corresponding visual structural description inside a circle.

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Longest Chord Classification

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Features
×The longest possible straight chord inside a circle
×A chord that does not intersect the center point
×A segment whose length is exactly half of the diameter
Diameter
Radius
Standard Chord

Classify the geometric features of a circle based on their dimensional traits.

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True or False: Chord vs Diameter

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Determine if the following geometric statement is true or false:

"Every diameter of a circle is a chord, but not every chord is a diameter."

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Calculating Radius from Diameter

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If the total across-the-center diameter length of a bicycle wheel is measured to be \(24\text{ inches}\), determine the length of one of its spokes (the radius).

Answer = (1)

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Circle Term Identification

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Enter the precise word required to complete the phrase:

The total surrounding perimeter distance around the outside edge of a complete circle is called the (1).

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A ______ is an arc of a circle whose endpoints are the endpoints of a diameter

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Missing
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Major arc and minor arc

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An arc that is shorter than a semicircle is a (1) arc. An arc that is longer than a semicircle is a (2) arc.

Please drag and drop the selected option in the right place or type it instead
minor
major
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Keywords
Year 8