Did you know that Pi ( π ) can be calculated to over a trillion digits? As it is an irrational number, it will continue infinitely and do so without repetition.

That’s pretty amazing, right?

To celebrate this incredible number, we have come up with a Pi Day Puzzle for you to have a go at! Why not give it a go? We’ll walk you through the process below:

To work out how far Ali has walked, we need to work out the circumference of the lake. The formula for working out the circumference is π x diameter.

As we have been told to use Pi to 3.14 and we know that the diameter of the lake is 120 meters, we need to do the following calculation:

3.14 x 120 = 376.8

Round this up to the nearest meter and we are left with an answer of:

377 meters.

Easy!

For more free Maths problems, visit KSOL’s Free 11+ Downloads page today.

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