Lesson Planet
Search educational resources
  • Sign In Try It Free
  • AI Teacher Tools
    • Discover Resources Search reviewed educational resources by keyword, subject, grade, type, and more
    • Curriculum Manager (My Content) Manage saved and uploaded resources and folders To Access the Curriculum Manager Sign In or Join Now
    • Browse Resource Directory Browse educational resources by subject and topic
    • Curriculum Calendar Explore curriculum resources by date
    • Lesson Planning Articles Timely and inspiring teaching ideas that you can apply in your classroom
    • Our Story
    • Frequently Asked Questions
    • Testimonials
    • Contact Us
  • Pricing
  • School Access
    • Your school or district can sign up for Lesson Planet — with no cost to teachers
      Learn More
  • Sign In
  • Try It Free
Circles in Triangles AssessmentCircles in Triangles Assessment
Publisher
Inside Mathematics
Resource Details
Curator Rating
Educator Rating
Not yet Rated
Grade
9th - 12th
Subjects
Math
1 more...
Resource Types
Assessments
7 more...
Audience
For Teacher Use
Duration
30 mins
Instructional Strategy
Independent Practice
Year
2012
Usage Permissions
Fine Print
Assessment

Circles in Triangles

Curated and Reviewed by Lesson Planet
This Circles in Triangles assessment also includes:
  • Answer Key
  • Rubric
  • Join to access all included materials

Challenge the class with inscribed circles in triangles. The assessment task requests class members use their knowledge of circles and right triangles to prove two triangles are congruent. They go on to utilize their knowledge of congruency to determine segment lengths.

18 Views 12 Downloads
CCSS: Designed

Concepts

congruent triangles, right triangles, triangles, circles, incenter, inscribed, tangent lines, line segments, congruence, corresponding sides, hypotenuse

Additional Tags

math

Instructional Ideas

  • Provide sample proofs to the class for them to analyze
  • Have class members share the different ways they found r

Classroom Considerations

  • Pupils should be familiar with proving triangles congruent and right triangles

Pros

  • Contains a list of areas of difficulty individuals had with the task
  • The rubric provides point allotments for partial credit

Cons

  • None

Common Core

HSG-CO.C.9 HSG-CO.C.10 HSG-C.A.2 HSG-C.A.3 MP3 MP6

View 41,170 other resources for 9th - 12th Grade Math

© 1999-2026 Learning Explorer, Inc.
Teacher Lesson Plans, Worksheets and Resources

Sign up for the Lesson Planet Monthly Newsletter

Open Educational Resources (OER)

  • Health
  • Language Arts
  • Languages
  • Math
  • Physical Education
  • Science
  • Social Studies
  • Special Education
  • Visual and Performing Arts
View All Lesson Plans

Discover Resources

  • Our Review Process
  • How it Works
  • How to Search
  • Create a Collection

Manage Curriculum

  • Edit a Collection
  • Assign to Students
  • Manage My Content
Contact Us Site Map Privacy Policy Terms of Use