Exploring Circle Parts
Grade 10th Grade · Math · 45 min· Tek
What's Included
Learning Objective
I can define and apply the terms radius, diameter, chord, tangent, secant, and arc to solve problems involving circles.
Warm-Up Video
Professor Dave Explains · 4:58
Circles: Radius, Diameter, Chords, Circumference, and Sectors
Guided Notes
3 key concepts
- 1
The radius of a circle is the distance from the center to any point on the circle, while a chord is a line segment with both endpoints on the circle.
- 2
A diameter is a chord that passes through the center of the circle, and its length is always twice the length of the radius.
- 3
The distance around the circle is called the circumference, and the ratio between the circumference and the diameter is represented by π (pi).
Practice Questions
10 questions · Multiple choice & Short answer
Exit Ticket
Quick comprehension check
“A circle has a radius of 7 cm. A chord is drawn that does NOT pass through the center of the circle. What is the longest possible length of this chord? Explain your answer.”
Complete Lesson Package
Get all 3 ready-to-use resources:
