Question

A rectangular picture frame measures 83 cm by 42 cm What is the perimeter or distance around the picture frame in meters

Answer 1

The correct answer to your question is 2.5 meters

Answer 2

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:

`P=2w+2l`

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

`P=2(83cm)+2(42cm)`

`P=166cm+84cm`

`P=250cm`

We can then convert to meters:

`250cm * (1m)/(100cm) = 0.25m`

The perimeter of the picture frame is 0.25m.