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  • 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.

4. Rukhsar painted the outside of the cabinet of measure $1 \mathrm{~m} \times 2 \mathrm{~m} \times 1.5 \mathrm{~m}$. How much surface area did she cover if she painted all except the bottom of the cabinet

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Required area = Total area - Area of bottom surface

Total area $=2(1 \times 2+2 \times 1.5+1.5 \times 1)=13 \mathrm{~m}^2$
Area of bottom surface $=1 \times 2=2 \mathrm{~m}^2$
So required area $=13-2 \mathrm{~m}^2=11 \mathrm{~m}^2$

Posted by

Devendra Khairwa

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