#1
Which of the following is the formula for calculating the circumference of a circle?
#2
If the radius of a circle is 5 units, what is the diameter?
#3
What is the name of the line segment that passes through the center of a circle and has endpoints on the circle?
#4
If the diameter of a circle is 12 units, what is the circumference?
#5
What is the measure of a central angle that subtends an arc of 45 degrees in a circle?
#6
In a circle, if the radius is 8 units and the central angle is 60 degrees, what is the length of the intercepted arc?
#7
If the radius of a circle is tripled, how does it affect the area of the circle?
#8
What is the measure of an inscribed angle that intercepts a semicircle in a circle?
#9
If the radius of a circle is 10 units, what is the area of the circle?
#10
What is the relationship between the inscribed angle and the central angle subtended by the same arc in a circle?
#11
If the central angle of a circle is 120 degrees, what is the measure of the corresponding inscribed angle?
#12
In a circle with radius 6 units, what is the length of an arc subtended by a central angle of 120 degrees?
#13
What is the relationship between the radius and the tangent line at the point of tangency on a circle?
#14