Identify which diagram shows the radius of a circle:
We have hundreds of course questions with personalized recommendations + Account 100% premium
Identify which diagram shows the radius of a circle:
Remember that a radius is a line segment connecting the center of a circle to any point on the circle itself.
In drawing C we can see that the line coming from the center of the circle indeed connects to a point on the circle itself, while in the other drawings the lines don't touch any point on the circle.
Therefore, C is the correct drawing.
Where does a point need to be so that its distance from the center of the circle is the shortest?
The center is the exact middle point of the circle. It's equidistant from all points on the circle's edge. Look for a small dot or point that appears to be in the very center of the circular shape.
A radius goes from the center to the edge, while a diameter goes all the way across the circle through the center. The diameter is always twice as long as the radius!
Yes! A circle has infinitely many radii. Every line segment from the center to any point on the circle is a radius, and they're all the same length.
If a line extends beyond the circle, it's not a radius. A radius must end exactly where it touches the circle's circumference - no further!
Some diagrams mark the center with a visible dot to make it clear, while others expect you to identify the center visually. Look for the point that appears equidistant from all edges.
Get unlimited access to all 18 Circle for Ninth Grade questions, detailed video solutions, and personalized progress tracking.
Unlimited Video Solutions
Step-by-step explanations for every problem
Progress Analytics
Track your mastery across all topics
Ad-Free Learning
Focus on math without distractions
No credit card required • Cancel anytime