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WorksheetsCircles: Vocabulary and Formulas
Total questions: 22
Worksheet time: 29mins
What is this called?
Diameter
Secant
Tangent Line
Radius
A segment that goes from edge to edge through the center.
diameter
radius
tangent
chord
The perimeter of a circle is called...
circumference
arc
radius
tangent
What is segment AB?
What is segment CE?
diameter
center
circumference
radius
Is the red line a radius or diameter of the circle?
Radius
Diameter
Center
Circumference
If you double the radius, what measure did you find?
If you half the diameter, what measure did you find?
This circle shows the diameter, what is the radius of this circle?
12 cm
10 cm
5 cm
6 cm
This image shows the radius of a circle, what is the circles diameter?
10 m
5 m
12 m
15 m
Since we have diameter, what is the appropriate formula to use?
C = π x d
C = 2 x π x r
What is the correct formula to find the circumference of this circle?
C= 2 x π x 36
C=2 x π x 18
C= π x 18
C= π x 36
This image shows the radius of a circle. How would you find the circumference? Pick TWO choices
C=2 x π x 5
C= 2 x π x 10
C= π x 5
C= π x 10
This circle shows the diameter, what is the radius of this circle?
12 cm
10 cm
5 cm
6 cm
What is the correct formula to find the circumference of this circle?
C= 2 x π x 4.5
C=2 x π x 4.5
C= π x 18
C= π x 9
What formula could be used to determine the circumference of the circle? Pick TWO Choices
C= π x 3.5
C= π x 7
C= 2 x π x 3.5
C= 2 x π x 7
What is the radius of this circle?
18
17
36
19
What is the exact circumference? (in terms of pi)
9π
4.5π
18π
What is the exact circumference? (in terms of pi)
10π
5π
20π
What is the exact circumference? (in terms of pi)
6π
12π
3π
