Hi, I am really stuck on this question ,
fig.19.2 shows a template whose area is 50 square centimetres. find the total length of the template.
I have drawn the image on paint and have attached it, but its not a very good drawing. sorry if it does not make much sense to you!
I would be able to work this out if it was just the square but because there’s also this semi-circle shape attached to the square i don't really know how to calculate the length of it.