Centers of Circles

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Objective

I can identify the different centers of circles, including incenter, circumcenter, orthocenter, and centroid.

Part 1 of 3

Warm-up video

Unknown Channel · 5:00

We don't generate video — this one is by Unknown Channel on YouTube. The practice questions and exit ticket below were drafted by AI for this objective, and every question is editable in the teacher guide.

Part 2 of 3

Practice

5 questions

1

Define the term "center" of a circle and explain its significance in relation to the properties of the circle.

2

Describe the characteristics of a radius and explain how it relates to the center and points on the circle.

Part 3 of 3

Exit ticket

Quick comprehension check

Define the incenter of a triangle and explain its significance in relation to the triangle's angles. Describe the circumcenter of a triangle and explain how it relates to the triangle's vertices.

Sample answer included in the free materials

Get the materials

Teacher guide, student handout, and slides — free, in Google Docs format

  • Teacher Guide

    Complete lesson plan with answer keys and alternate activities

  • Student Handout

    Printable worksheet

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