Deriving Pi

Front

The number pi ________________

Back

never ends & never repeats.

Front

If the radius of a circle is 12.5 meters, the diameter is ____

Back

25 meters.

Front

What is the symbol for pi?

Back

π

Front

Ahmed measured the diameter (d) and circumference (C) of a circle accurately. If d = 113 mm and C = 355 mm, what value did he get for π?

Back

3.1415929.

Front

What is the best way to find pi?

Back

C/D.

Front

What does the symbol π represent?

Back

The ratio of the circumference of a circle to its diameter.

Front

What is the approximate value of pi?

Back

3.14.

Front

How do you calculate the circumference of a circle?

Back

C = π × D (where D is the diameter).

Front

What is the relationship between radius and diameter?

Back

Diameter = 2 × Radius.

Front

What is the value of π in fraction form?

Back

Approximately 22/7.