
Understanding Circles and Sectors

Interactive Video
•
Mathematics
•
7th - 10th Grade
•
Hard

Olivia Brooks
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a sector in a circle often compared to?
A slice of pizza
A piece of pie
A wedge of cheese
A slice of cake
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the formula for the area of a circle?
2πr
πr²
πd
πr
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How do you calculate the area of a sector?
Measure of the arc divided by 360, multiplied by πr²
Measure of the arc multiplied by 360, divided by πr²
Measure of the arc divided by πr², multiplied by 360
Measure of the arc multiplied by πr², divided by 360
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If a sector has a central angle of 120°, what fraction of the circle does it represent?
1/3
1/4
1/6
1/2
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What method is used to find the area of a circle when given the area of a sector?
Subtraction method
Proportion method
Addition method
Division method
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In a proportion problem, what is the first step after setting up the equation?
Divide the fractions
Add the fractions
Multiply the fractions
Cross-multiply
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How can you find the radius of a circle if you know the area?
Multiply the area by π
Add π to the area
Divide the area by π and take the square root
Subtract π from the area
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