What is a real world use of a quadrilateral?

Answer 1

-- city blocks

-- house foundations

-- printer paper

-- computer screens

-- computer keyboards

-- office building foundations

-- CD and DVD cases

-- book covers

-- newspapers

-- mailing envelopes

-- house windows

-- walls in a room of a house

-- floor of a room in a house

-- ceiling of a room in a house

-- sides, tops, and bottoms, of boxes, cartons, and crates

-- do-it-yourself book shelves

-- doors

-- bed sheets

-- blankets

-- tables

-- tablecloths

-- notepads