Rukshar painted the outside of the cabinet of measure 1 m × 2 m × 1.5 m. How much surface area she cover if she painted all except the bottom of the cabine... Its urgent please answer fast...
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Area of the box (cuboid shaped) except bottom =total surface area-area of bottom
==2\left(lb+bh+hl\right)-l\times b=2(lb+bh+hl)−l×b
=2\left(1\times2+2\times1.5+1.5\times1\right)-1\times2=2(1×2+2×1.5+1.5×1)−1×2
=2\left(2+3+1.5\right)-2=2(2+3+1.5)−2
=2\left(6.5\right)-2=2(6.5)−2
=13-2
=11m^2=11m
2
Area painted=11m^211m
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