Question

Rukhsar painted the outside of the cabinet of
measure 1 m × 2 m × 1.5 m. How much
surface area did she cover if she painted all except the bottom of the cabinet.

Answer 1

❝ [Solution] ❞

Total surface area of cabinet $\sf{= \purple{2(lb+bh+hl)}}$

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$=2[(1)(2)+(1)(1.5)+(2)(1.5)]$

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$\bf{= \green{13}}$

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$\sf{Area \: of \: base \: cabinet  \: =lb=2}$

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$\sf{Surface \: area \: painted \: \bf{ =13−2=11m}}$

Hope it helps!