M3L18 Area and Circumference of Circles and Partial Circles

Quiz
•
Mathematics
•
7th Grade
•
Hard
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15 questions
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1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
What is the formula for the circumference of a circle?
C = @@ ext{π} imes d@@
C = @@2 ext{π} imes r@@
C = @@ ext{π} imes r^2@@
C = @@rac{d}{2} imes ext{π}@@
2.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
What is the perimeter of a semicircular flower bed with a diameter of 5m?
10.00m
12.85m
15.70m
8.00m
3.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
What is the diameter of a circle with a radius of 3m?
4m
5m
6m
7m
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
If the diameter of a circle is 10m, what is the radius?
5m
7m
10m
2.5m
5.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
What is the formula for the area of a partial circle (sector)?
A = @@\frac{\theta}{360} \times \text{π} \times r^2@@
A = \text{π} \times r^2
A = \frac{1}{2} \times r^2 \times \theta
A = \text{π} \times r \times \theta
6.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
If a circle has a circumference of 31.4m, what is its diameter?
8m
9m
10m
12m
7.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
What is the difference between the area and circumference of a circle?
The area measures the space inside the circle, while the circumference measures the distance around the circle.
The area is the distance around the circle, while the circumference measures the space inside the circle.
The area and circumference are the same measurement of a circle.
The area measures the diameter of the circle, while the circumference measures the radius.
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