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Circles
Test Description: Pi, circle, diameter, radius, circumference
Instructions: Answer all questions to get your test result.
1) What is Pi?
A
4.15
B
3.14
C
3.5
D
6.3
2) What is a circle?
A
one eternal round
B
it has corners
C
it is a half a square
D
a diameter
3) What is a diameter?
A
90 degrees
B
the line that goes all the way around the circle
C
A line that divides a circle in half
D
a line that is half of the line that divides the circle in half
4) What is a radius?
A
half of the diameter
B
one eternal round
C
The line that goes around the circle
D
the area on the inside of the circle
5) What is the circumference?
A
it is the same as the diameter
B
the line that divides the circle in half
C
The line that goes around the outside of the circle
D
the area on the inside of the circle
6) What is the formula for the circumference?
A
pi
B
pi r squared
C
pi r
D
pi d
7) What is the formula for the area of a circle?
A
pi r
B
pi d
C
pi r squared
D
2 pi r
8) If you have a diameter of 2 what is circumference?
A
3.14
B
6.28
C
9.4
D
4.5
9) If you have a radius of 6 what is the area of a circle?
A
100
B
113.04
C
150.06
D
219.14
10) If you have a diameter of 4 what is the radius?
A
1
B
2
C
4
D
6
*select an answer for all questions
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