Rukhsar painted the outside of the cabinet of measure `1m xx 2m xx 15m.` How much surface area did she cover if she painted all except the bottom of the cabinet.

Explanation

The surface area of cuboid = `2(lxxb+bxxh+lxxh)`


The surface area of the bottom of the cuboid will be deducted.

Area of cabinet that was painted = total surface area - area of bottom

`=2(lxxb+bxxh+lxxh)-lxxb`

`=2(bxxh+lxxh)+lxxb`

`=2xx(1xx1.5+1.5xx2)+2xx1 m^2`

`=2xx4.5+2 m^2`

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