placeholder image to represent content

Formulas and Circles

Quiz by Andrew Watts

Feel free to use or edit a copy

includes Teacher and Student dashboards

Measure skills
from any curriculum

Tag the questions with any skills you have. Your dashboard will track each student's mastery of each skill.

With a free account, teachers can

edit the questions
save a copy for later
start a class game
automatically assign follow-up activities based on students’ scores
assign as homework
share a link with colleagues
print as a bubble sheet

Q 1/17
Score 0
What is the formula for the circumference of a circle?
29
$2\pi r$
$2\pi r^2$
$d\pi r$
$\pi r^2$

Our brand new solo games combine with your quiz, on the same screen

Correct quiz answers unlock more play!

New Quizalize solo game modes

17 questions

Show answers

Q1
What is the formula for the circumference of a circle?
$2\pi r$
$2\pi r^2$
$d\pi r$
$\pi r^2$
30s
Q2
What is the formula for the circumference of a circle?
$A=2r\pi$
$C=2r+\pi$
$C=\pi d$
$C=\frac{1}{2}\pi d$
30s
Q3
What does the prefix "Circum" mean?
To go around
The radius of something
A Circle
All of something
30s
Q4
What is the formula for diameter of a circle?
$r\cdot2$
$r\div2$
$2rd$
$r^2$
30s
Q5
How many squares fit inside a circle?
3.14 x $r^2$
3.14
$\pi r$
$d\times2$
30s
Q6
What is the formula for the area of a circle?
$A=\frac{C}{2}\cdot r$
$A=\pi\cdot3.14r$
$C=\frac{r}{2}\cdot\pi$
$A=3.14d$
30s
Q7
What is the formula for the area of a rectangle?
$\frac{C}{2}\times width$
$length\ \div width$
$length\ \times width$
$2\times length\ \times width$
30s
Q8
What is the formula for the perimeter of a rectangle?
$l\cdot w$
$l+l+l+l$
$2w\times2l$
$2\ \times\left(l\ +w\right)$
30s
Q9
What is a squared number?
A number multiplied by its self 2 times.
A number multiplied by 2.
A number that adds itself 2 times.
A number multiplied by itself.
30s
Q10
30s
Q11
Which number is not a perfect square?
82
121
49
64
30s
Q12
How many diameters are in a circle's perimeter?
3.14
$d=2$
$\pi r^2$
6.28
30s
Q13
In the image what is a chord?
ab
od
oe
cd
30s
Q14
In the image what is a radius?
oc
cd
ab
oe
30s
Q15
This is the diameter of a circle.
false
true
True or False
30s

Teachers give this quiz to your class