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Williamsburg High School for Architecture and Design

Innovating Career & Technical Education for New York City’s Future

You are here: Home / Teacher Posts / Topic 6 (Secants)

Topic 6 (Secants)

December 4, 2014 By Ms. Bruno

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Today we added a new circle definition to our lexicon.

 

A secant is a line that intersects a circle at two points.

secant

 

We then looked at two theorems the Secant-Secant Rule and the Secant-Tangent Rule.

 

Secant-Secant Rule: (Whole Secant)(External Part) = (Whole Secant)(External Part)

Secant-Tangent Rule: (Whole Secant)(External Part) = Tangent^2

Check the diagrams for Theorems 2 and 3 on this page:

http://www.regentsprep.org/Regents/math/geometry/GP14/CircleSegments.htm

 

 

Classwork and Homework:

[gview file=”https://www.whsad.org/wp-content/uploads/2014/12/Lesson-6-Homework.docx”] [gview file=”https://www.whsad.org/wp-content/uploads/2014/12/Lesson-6-Activity-Sheet.docx”]

 

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About Ms. Bruno

Ms. Bruno has been an Assistant Principal at Williamsburg High School for Architecture and Design since 2009. She oversees the departments of Science, Mathematics, Architecture and Design (Career and Technical Education (CTE)), Physical Education and Health. She can be reached at 718-388-1260 ext. 2080, or bruno@whsad.org.

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