Square cushion measures 65 cm by 65cm and 10 cm thick. I got help of the measurements from 1:20 scale to 3.25 by 3.25 by .5cm I drew out and labeled them. I need help with the next step.
The square cushion is made of 3 component parts a top bottom and sides. Draw the cushions component parts to scale and label them with their measurements. Each edge piece of fabric will need a seam allowance of 1.5cm added before the components are drawn.
What measurements do I use when drawing and how do I figure this out? Thank you in advance if you can help me!