Type:

Unit

Description:

<p>Students discover that a line is tangent to a circle at a given point if it is perpendicular to the radius drawn to that point.<br/>Students construct tangents to a circle through a given point.<br/>Students prove that tangent segments from the same point are equal in length.</p><p>Teacher and Student versions of full lesson from engageNY</p>

Subjects:

  • Mathematics > General
  • Mathematics > Geometry

Education Levels:

  • Grade 9
  • Grade 10

Keywords:

inscribed angles radii chords central circumscribed tangent

Language:

English

Access Privileges:

Public - Available to anyone

License Deed:

Creative Commons Attribution Non-Commercial Share Alike

Collections:

Teacher Resources
Update Standards?

CCSS.Math.Practice.MP1: Common Core State Standards for Mathematics

Make sense of problems and persevere in solving them.

CCSS.Math.Practice.MP2: Common Core State Standards for Mathematics

Reason abstractly and quantitatively.

CCSS.Math.Practice.MP3: Common Core State Standards for Mathematics

Construct viable arguments and critique the reasoning of others.

CCSS.Math.Practice.MP5: Common Core State Standards for Mathematics

Use appropriate tools strategically.

CCSS.Math.Practice.MP6: Common Core State Standards for Mathematics

Attend to precision.

CCSS.Math.Practice.MP7: Common Core State Standards for Mathematics

Look for and make use of structure.

CCSS.Math.Content.HSG-C.A.2: Common Core State Standards for Mathematics

Identify and describe relationships among inscribed angles, radii, and chords.
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'C' - Curriki rating
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