Han House
What is the approximate value of pi up to 6 digits?
3.14159
Which Greek letter is used to represent the ratio of a circle's circumference to its diameter?
π (pi)
Which famous scientist was born on Pi Day (March 14)?
Albert Einstein
What is the formula for the circumference of a circle?
2 pi r or pi d
How can you define Pi?
The ratio of the diameter of a circle to its circumference.
If you multiply pi by the square of the radius of a circle, what do you get?
Area of a circle.
Which geometrical shape measurements involve pi?
Circle
Which part of the circle do we use pi to find?
Circumference or area
What is the unit of pi (π) in the International System of Units (SI)?
Radians
Who is credited with being the first person to calculate the value of pi?
Archimedes.
What is the value of pi squared (π²) approximately equal to?
About 9.87
If the diameter of a circle is 10 units, approximately what is its circumference?
About 31.4 units.
What is the name for the measurement of the space inside a flat, two-dimensional object?
Area.
How many positive integers are less than 10π?
31
A particular circle’s circumference is 4π inches, and its area is 4π square inches. What is the radius of the circle, in inches?
2 inches
Which digit appears most in the first 6 billion decimal places of Pi?
1
We are given a set of 5 numbers. If each of these 5 numbers increases by 10, what happens to their average?
The new average is 1010 more than the old average.
Ahmed can finish a task in x+3 days if he works just by himself. Mahmood can finish the same task in 4 days by himself. If they work together, then they finish the task in 3 days. What is x?
9
A sum of money is divided between two sisters, Jane and Sarah, in the ratio 9:7. If Jane receives €135, calculate the sum of money.
€ 240
The endpoints of the diameter of a circle are (-5, t) and (4, 10). Given that the radius is 7.5 units, find t.
2 and - 22