Understanding Circles: Area and Circumference
Authored by Wayground Content
Mathematics
6th - 10th Grade
CCSS covered
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the radius of a circle if its diameter is 10 units?
2.5 units
20 units
5 units
10 units
Tags
CCSS.HSG.C.A.2
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How do you find the radius from the diameter of a circle?
Square the diameter
Divide the diameter by 2
Multiply the diameter by 2
Multiply the diameter by π
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Using the formula C = πd, what is the circumference of a circle with a diameter of 14 units?
43.96 units
44 units
28 units
88 units
Tags
CCSS.HSG.GMD.A.1
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If the radius of a circle is 7 units, what is its circumference using C = 2πr?
14 units
14π units
44 units
22 units
Tags
CCSS.HSG.GMD.A.1
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What formula is used to calculate the circumference of a circle when the radius is known?
C = πd
A = πr^2
C = 2πr
A = πd^2
Tags
CCSS.HSG.GMD.A.1
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A circle's diameter is 20 units. What is its circumference?
20π units
40 units
62.8 units
10π units
Tags
CCSS.HSG.GMD.A.1
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the area of a circle with a radius of 4 units?
50.24 square units
16π square units
12.56 square units
25.12 square units
Tags
CCSS.HSG.GMD.A.1
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