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Details: Student's hand holds a pencil and paints the perimeter of a rectangle drawn in a notebook, calculates the perimeter and surface of geometric shapes, doing homework on the geometry at home
Airport security perimeter fencing system with razor wire, Prague, Czech Republic
Perimeter of geometric shapes and figures, Maths, Geometry and Algebra formulas for teaching and learning activity with colorful chalks drawing on blackboard
Locked Gate/Boarder Tethered by metal chain and padlock. Toned photo. Closed borders immigration concept.
Security Guard Walking Building Perimeter With Flashlight At Night

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Baseball fence with right field marker in public parkImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/baseball-fence-right-field-marker-public-3638484">Image used under license from Freestock.com</a>
Close-up of rolled-up construction fencingImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/closeup-rolledup-construction-fencing-740989">Image used under license from Freestock.com</a>

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