



 
This is best done by three simple steps: Now for the square: the four sides are each 1/4 of the perimeter (the sum of the sides): 27 centimeters. For the triangles: the short sides are each 1/3 of the sides of the square: 9 cm. There is a second way to check this answer: With this you can see that the whole square is divided into 9 smaller squares. Walter Whiteley  


Math Central is supported by the University of Regina and The Pacific Institute for the Mathematical Sciences. 