![From a square sheet of paper 20 cm by 20 cm, we can make a box without a lid. We do this by cutting a square from each corner and folding up From a square sheet of paper 20 cm by 20 cm, we can make a box without a lid. We do this by cutting a square from each corner and folding up](https://slideplayer.com/15234274/92/images/slide_1.jpg)
From a square sheet of paper 20 cm by 20 cm, we can make a box without a lid. We do this by cutting a square from each corner and folding up
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Amazon.com: DOMVITUS Boucle Pillow Covers 20x20 Luxury Throw Pillow Covers Decorative Pillows for Bed Sofa Pillows for Living Room Accent Couch Pillows Soft Cushion Case, 1PC, Ivory : Home & Kitchen
![Artgeo 3mm FSC Canvas Panel (20cm x 20cm) Pack of 8, 100% Plastic Free Packaging : Amazon.co.uk: Home & Kitchen Artgeo 3mm FSC Canvas Panel (20cm x 20cm) Pack of 8, 100% Plastic Free Packaging : Amazon.co.uk: Home & Kitchen](https://m.media-amazon.com/images/W/IMAGERENDERING_521856-T1/images/S/aplus-media-library-service-media/ec92a480-de24-4a14-aedc-2edf19428228.__CR0,0,970,600_PT0_SX970_V1___.jpg)