Friday
Today we are looking at the perimeter of rectangular shapes.
How can I work out the perimeter if a side is not labelled?
![](https://static.wixstatic.com/media/004ce8_d0caee4167d84c158c89ba0ac71431d8~mv2.png/v1/fill/w_980,h_510,al_c,q_90,usm_0.66_1.00_0.01,enc_auto/004ce8_d0caee4167d84c158c89ba0ac71431d8~mv2.png)
I can add up the lengths on the other side - 5cm + 3cm = 8cm.
The missing length is 8cm. What is the perimeter of the shape?
Here is a video to help you - https://vimeo.com/470607065
If you fancy a challenge:
![](https://static.wixstatic.com/media/004ce8_b0efa24de1c5484482f7d1ca4ab47c9d~mv2.png/v1/fill/w_792,h_640,al_c,q_90,enc_auto/004ce8_b0efa24de1c5484482f7d1ca4ab47c9d~mv2.png)
![](https://static.wixstatic.com/media/004ce8_1d31285dd4a84520a814ef5c2170bd5a~mv2.png/v1/fill/w_980,h_859,al_c,q_90,usm_0.66_1.00_0.01,enc_auto/004ce8_1d31285dd4a84520a814ef5c2170bd5a~mv2.png)
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