Mathematics, 05.06.2021 08:40 Coscutt

A plain mat is placed around a picture measuring 28 cm by 36 cm so that the width of the mat is equal on all sides.
The area of the mat is 54 of the area of the picture. Find the
width of the mat, to the nearest millimetre.
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A plain mat is placed around a picture measuring 28 cm by 36 cm so that the width of the mat is equ...