Find the TSA of a cuboid whose sides are 7m, 300cm, 450cm *
132m²
143m²
152m²
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sides of cuboid: 7m,3m,4.5m
TSA(cuboid)= 2(lb+BH+hl)
= 2[7×3+3×4.5+4.5×7]
= 2( 21+13.5+31.5)
= 2(66)
= 132 m^2
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