Arectangular picture frame measures 83 cm by 42 cm what is the perimeter or distance around the picture frame in meters

We know that the perimeter of any shape is found by adding up the distance all the way around the shape. For a rectangle (like a picture frame) this is equal to twice the width plus twice the length:


We can find our answer by direct substitution of known values:




We can then convert to meters:


The perimeter of the picture frame is 0.25m. 

The first digit is in the middle school 100s place