Practice - Definition - 2.1
Enroll to start learning
You’ve not yet enrolled in this course. Please enroll for free to listen to audio lessons, classroom podcasts and take practice test.
Practice Questions
Test your understanding with targeted questions
Define a circle.
💡 Hint: Think about how distance relates to points in geometry.
What is the formula for diameter?
💡 Hint: Consider the relationship between radius and diameter.
4 more questions available
Interactive Quizzes
Quick quizzes to reinforce your learning
What is the radius of a circle?
💡 Hint: Consider what you measure from the center.
True or False: The diameter is the longest chord of the circle.
💡 Hint: Think about the definition of a chord.
Get performance evaluation
Challenge Problems
Push your limits with advanced challenges
A circle has a radius of 10 cm. What is the area of the sector formed by a 120-degree angle at the center?
💡 Hint: Recall the sector area formula, and break down the calculation.
Two tangents are drawn from an external point to a circle of radius 5 cm. If the distance from the external point to the center of the circle is 13 cm, what is the length of each tangent?
💡 Hint: Think about the right triangle formed using the radius and the tangent.
Get performance evaluation
Reference links
Supplementary resources to enhance your learning experience.