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Science Buddies: Inscribing a Circle in a Triangle Using the Geometry Applet Lesson PlanScience Buddies: Inscribing a Circle in a Triangle Using the Geometry Applet Lesson Plan
Publisher
Science Buddies
Resource Details
Curator Rating
Educator Rating
Not yet Rated
Grade
9th - 10th
Subjects
Math
2 more...
Resource Type
Lesson Plans
Audiences
For Administrator Use
1 more...
Lexile Measures
1200L
Lesson Plan

Science Buddies: Inscribing a Circle in a Triangle Using the Geometry Applet

Curated by ACT

Here is a project that combines Computer Science and Mathematics. Prove a method for inscribing a circle within a triangle (as shown). You'll also learn how to create an interactive diagram to illustrate your proof, using an applet that runs in your Web browser. If you like solving problems and thinking logically, this project may be for you.

3 Views 1 Download

Concepts

computer science

Additional Tags

programing, science fair project, science buddies, science project, inscribed circles

Classroom Considerations

  • Knovation Readability Score: 4 (1 low difficulty, 5 high difficulty)

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Lesson Plan

Secant Lines; Secant Lines That Meet Inside a Circle

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Young mathematicians identify different cases of intersecting secant lines. They then investigate the case where secant lines meet inside a circle.
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Lesson Plan

Finding the Area of an Equilateral Triangle

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The problem seems simple: find the area of the equilateral triangle whose sides are each length 1. In fact, this same problem is solved in 8th grade, addressing a different Common Core standard, using the formula for area of a triangle...
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Lesson Plan

Writing the Equation for a Circle

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Circles aren't functions, so how is it possible to write the equation for a circle? Pupils first develop the equation of a circle through application of the Pythagorean Theorem. The lesson then provides an exercise set for learners to...
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Instructional Video

Introduction to the Unit Circle, Trigonometry

Khan Academy
In this video, Sal shows how the sine and cosine of an angle are defined on the unit circle. He inscribes a 30-60-90 triangle in the unit circle and explains how to use SOH-CAH-TOA to find the circle's coordinates.
9 mins 10th - 12th Math
Instructional Video

45-45-90 Triangles

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45-45-90 triangles are half a square, which gives them a special status! The instructor explains the relationship of the sides of the 45-45-90 triangle using the Pythagorean Theorem as a reference. 
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Instructional Video

Intersecting Chords of Circles

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Strike a chord with your classes! Use the video to demonstrate the relationship between intersecting chords in a circle. The instructor includes an example that involves a quadratic equation and extraneous solution. 
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Instructional Video

Conic Sections: Intro to Circles

Khan Academy
This video explores the equation of a circle by first looking at the equation of a circle with the center at the origin and then building upon that, equations of circles that are shifted off the origin.
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Lesson Plan

Science Buddies: Circumscribing a Circle About a Triangle

Science Buddies
Here is a project that combines Computer Science and Mathematics. Prove a method for circumscribing a circle about a triangle (as shown). You'll also learn how to create an interactive diagram to illustrate your proof, using an applet...
9th - 10th Math
Activity

Texas Instruments: Inscribing a Circle in a Triangle

Texas Instruments
In this activity, students bisect the angles of a triangle and find the incenter of the triangle. They find the distance from the incenter to the side of the triangle and use it as radius. With the incenter as the center, they inscribe a...
9th - 10th Math
Interactive

Pythagorean Theorem for Solving Right Triangles: Solving the Triangle

CK-12 Foundation
Observe the change in the trigonometric ratios as angles vary. An interactive provides the values of trigonometric ratios for both acute angles in a right triangle. Pupils create a right triangle to match given criteria and find the...
9th - 12th Math
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