Inscribed Angle Teacher Resources

Find Inscribed Angle lesson plans and worksheets
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Common Core Math: 8th Grade

For Teachers 8th Standards
Check out the Common Core with a collection that represents all the 8th grade math standards. Most resources engage multiple standards but the main one is listed on the notes section of each tab. 
EngageNY

EngageNY Geometry Module 5: Circles With and Without Coordinates

For Teachers 9th - 12th Standards
A comprehensive 21-lesson math unit challenges high schoolers to wrap their heads around the geometry of circles. Building on a prior understanding of similarity and congruence, length and area, and the properties of geometric figures,...
1 In 1 Collection
EngageNY

Inscribed Angle Theorem and Its Applications

For Teachers 9th - 10th Standards
Inscribed angles are central to the lesson. Young mathematicians build upon concepts learned in the previous lesson and formalize the Inscribed Angle Theorem relating inscribed and central angles. The lesson then guides learners to prove...
1 In 1 Collection
EngageNY

Experiments with Inscribed Angles

For Teachers 9th - 10th Standards
Right angles, acute angles, obtuse angles, central angles, inscribed angles: how many types of angles are there? Learners first investigate definitions of inscribed angles, central angles, and intercepted arcs. The majority of the lesson...
5:54
Lesson Planet

Inscribed Angles in Circles: Lesson

For Students 9th - 12th Standards
Circle the angles and intercept the arcs. The video introduces three theorems relating to inscribed angles in circles. Using drawings, the segment of a playlist on geometry illustrates the measure of angle along with theorems about two...
8:36
Lesson Planet

Inscribed Angles of Circles

For Students 9th - 12th Standards
Relationships in circles build from the many connections made throughout the geometry course. The instructor in the video explains these connections as she builds the concept of inscribed angles. Using examples, the narrator highlights...
Lesson Planet

Central and Inscribed Angles

For Students 9th - 12th Standards
The measure depends upon the location of the vertex. Pupils describe the relationship between central and inscribed angles that intercept the same arc and then provide a diagram to illustrate their descriptions.
Lesson Planet

Inscribed Angle on Diameter

For Students 9th - 12th Standards
What is the relationship between inscribed angles associated with the diameter? Given a triangle inscribed in a circle with the diameter as one side, pupils find the measure of two angles using a combination of the formula for the...
Lesson Planet

Cabri Jr. Inscribed Angles

For Teachers 9th - 12th Standards
Young scholars construct inscribed angles using Cabri Jr. They draw a circle on their graphing calculator, then construct an inscribed angle and measure its angle measures. Learners drag the inscribed angle around the circle. They make...
1 In 1 Collection
EngageNY

The Inscribed Angle Alternate – A Tangent Angle

For Teachers 9th - 12th Standards
You know the Inscribed Angle Theorem and you know about tangent lines; now let's consider them together! Learners first explore angle measures when one of the rays of the angle is a tangent to a circle. They then apply their newfound...
Lesson Planet

Inscribed Angles

For Students 10th
In this inscribed angles worksheet, 10th graders solve 11 different problems that are related to determining the measurement of various inscribed angles. First, they name the intercepted arc for an angle, the inscribed angle, and the...
1 In 1 Collection
EngageNY

Unknown Angle Problems with Inscribed Angles in Circles

For Teachers 9th - 10th Standards
We know theorems about circles—now what? Class members prove a theorem, with half the class taking the case where a point is inside the circle and half the class taking the case where a point is outside the circle. The lesson then...
Lesson Planet

Inscribed Angles

For Students 10th
In this inscribed angles instructional activity, 10th graders solve and complete 21 different types of problems. First, they find the measure of the indicated arc or angle. Then, students find the value of each variable. In addition,...
Lesson Planet

Investigating the Relationship Between the Inscribed Angle and Central Angle

For Teachers 9th - 12th Standards
This is a fun lesson plan that explores the relationship between inscribed angles and central angles in the same circle. Learners use dynamic geometry software such as GeoGebra, Geometer's Sketchpad, or Cabri to construct and measure...
Lesson Planet

Going in Circles - Inscribed Angles

For Teachers 9th - 12th
Students construct circles and inscribed angles of circles.  In this circles and inscribed angles of circles lesson, students use Geometer's Sketchpad for the Ti-89 to discover properties of inscribed angles of a circle.  Students...
Lesson Planet

Inscribed Angles-ID: 9687

For Teachers 10th
Tenth graders investigate angles inscribed in a circle.  In this geometry instructional activity, 10th graders explore the relationship between the measure of the inscribed angle and its intercepted arc.  The dynamic nature of the...
1 In 1 Collection
EngageNY

The Angle Measure of an Arc

For Teachers 9th - 10th Standards
How do you find the measure of an arc? Learners first review relationships between central and inscribed angles. They then investigate the relationship between these angles and their intercepted arcs to extend the Inscribed Angle Theorem...
Lesson Planet

Inscribed Angles Theorem

For Teachers 9th - 12th
Learners explore the concept of central and inscribed angles.  In this central and inscribed angles theorem lesson, students use Cabri Jr. to draw circles and construct central and insribed angles.  Learners measure angles and determine...
1 In 1 Collection
Lesson Planet

Right Triangles Inscribed in Circles I

For Teachers 9th - 10th Standards
One of the basic properties of inscribed angles gets a triangle proof treatment in a short but detailed exercise. Leading directions take the learner through identifying characteristics of a circle and how they relate to angles and...
Lesson Planet

Angles in Circles

For Teachers 9th - 12th Standards
Teach your learners how to investigate the relationship between a central angle and an inscribed angle which subtend the same arc of a circle. The dynamic nature of Cabri Jr. provides opportunity for conjecture and verification.
Lesson Planet

Inscribed Angle Theorem

For Teachers 10th
Tenth graders investigate the Inscribed Angle Theorem.  In this geometry activity, 10th graders explore the relationship between an inscribed angle and its intercepted arc by examining the relationship between the central angle and the...
Lesson Planet

Inscribed Angles

For Teachers 9th - 10th
Students calculate the inscribed angle of a triangle. In this geometry lesson, students identify the angle created by intersection of a triangle and a circle. They see the relationship between the arc and the angle.
Lesson Planet

Practice 12-3: Inscribed Angles

For Students 10th - 12th
In this inscribed angle worksheet, students identify inscribed angles. They determine the value of inscribed angles. This one-page worksheet contains 14 multi-step problems.
Lesson Planet

Inscribed Angles

For Students 10th
In this inscribed angles worksheet, 10th graders solve 13 various types of problems related to inscribed angles in geometry. First, they identify a circle illustrated and each arc of the circle. They, students find the measure of each...

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