Parts of a circle
What is the distance from the centre of a circle to any point on its edge?
What is the Radius?
What is the shape of the Earth when viewed from space?
What is a Sphere?
Pi Day is celebrated on March 14 because it represents the first three digits of this number.
What is 3.14?
Pi (π) is this kind of number, meaning it goes on forever without repeating.
What is an irrational number?
If you multiply a number by zero, what colour shirt did Mr. Jones wear yesterday?
What is blue?
What is the Diameter?
What is the circular motion that happens when a planet orbits the sun?
What is an elliptical orbit?
On Pi Day, people sometimes celebrate by doing this — trying to remember as many digits of π as they can.
What is a Pi memorization contest?
What fraction is commonly used to approximate Pi?
What is 22/7?
At Eaglehawk Secondary College, this community won the overall swimming sports competition.
What is Grieve?
What is the curved line that forms the perimeter of a circle?
What is the Circumference?
This scientist used Pi to calculate orbits of planets and helped launch space missions.
Who is Isaac Newton?
This pie-related food is often eaten on Pi Day as a fun way to celebrate.
What is pie?
To calculate the circumference of a circle, use this formula.
What is C = 2πr? (or D * Pi)
If the radius of a circle is doubled, the area of the circle will increase by this factor.
What is four times?
What is the part of the circumference that measures a curved section of a circle called?
What is the Arc?
This type of curve in architecture and design often uses π calculations to create smooth circular paths.
What is a parabola or circular arc?
Pi is celebrated on March 14 each year. This time of day represents the first digits of pi, 3.14, when expressed as a time using the next digits in Pi.
3.14159...
What is 1:59 PM?
This formula is used to calculate the area of a circle.
What is A = πr²?
What are the first 10 digits of Pi?
What is 3.141592653
What is the formula used to calculate the circumference of a circle?
What is C=2*Pi*R or C=Pi*D
Pi is critical in calculating the measurements for this large structure, often requiring accurate π calculations for design.
What is a dome or sphere (e.g., dome of a stadium)?
Pi Day was first celebrated in this year, the year when π was officially recognized as an important constant.
What is 1988?
This mathematician is famous for approximating the value of π using polygons.
Who is Archimedes?
This ancient civilization is known for making early calculations of pi, even approximating it as 3.14.
What are the Egyptians?