# Daily Practice – 03/14 (Pi Day)

Reuleaux triangle is a shape formed from the intersection of three circular disks,  each having its center on the boundary of the other two.

Let the arc radius be r, can you find out what is the area of this Reuleaux triangle?

Fun Fact about PI – we all know that there are many ways to calculate the value of PI; however, do you know we can also get a very good simulation of PI by multiplying these interesting numbers?

1.09999901

×1.19999911

×1.39999931

×1.69999961

= 3.141592573