A round jar lid has a radius of 3 centimeters. What is the lid's area? Take Ï = 3.14
28.26cm2
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baam
Lose 25 points!
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seesaw
Swap points!
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shark
Other team loses 25 points!
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lifesaver
Give 25 points!
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5
It is a middle point inside the circle.
The centre of the circle
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15
Pi is equal to the ratio of the ____________ of a circle divided by its ____________.
Circumference, diameter
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15
The dirt on a baseball field is in the shape of a quarter circle. If the radius of the quarter circle is 10 meters, how much area does the dirt cover? Take Ï= 3.14
78.5 m2
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15
If a circle has a radius of 8 centimeters, approximately what is its circumference? Use 3.14 for pi
50.24 cm
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20
The radius of a quadrant is 7 cm. What is the perimeter of the quadrant? (Take Ï = 22/7)
25 cm
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15
I am a straight line that goes from one side of the circle to the other through the centre point. What am I called?
Diameter
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15
Find the area of the semicircle. Take Ï = 3.14
56.52 cm2
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10
What is the formula for area of a circle?
Ï x radius x radius
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15
What are the values that we usually use for pi? (State the 2 of them)
3.14 and 22/7
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thief
Give points!
5
10
15
20
25
rocket
Go to first place!
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shark
Other team loses 10 points!
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banana
Go to last place!
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15
I am a part of the circle that looks like a slice of cake or a slice of pizza. I am called a ___________.
Sector
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15
What is the distance around the circle?
Circumference
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15
A car has a wheel with a diameter of 90cm. If it makes 10 rotations, how far will it travel? Take Ï= 3.14