How to dimension a slot in a drawing?

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Dimensions Height: cm Width: cm Thickness: cm cm Dual nano-SIM slot Buttons Gestures and on-screen navigation support Audio

I am learning Autodesk Inventor and I am having trouble adding a dimensionto a slot to a product I am  or if not, what is a better way to make the callout? Should I lay a center mark on the curved slot center, give it a radius dimension,

evo 777 slot Pre-selecting sketch curves and then applying slot creates slots of equal size across all curves, lines, or arcs, linked together with one single dimension You In this video, we'll show you how to dimension holes and slots clearly and concisely To reduce the number of dimensions on the drawing