1.

2cubes each of volume 64 cm^3 are joining end to end. Find the surface area of resulting cuboid.

Answer» You forget to divide by 2 also
Wrong answer 160 is correct
Volume of one cube-a^3^3_/64=4Side of 1Cube=4cmLength=4+4=8cmBredth=4CmHieght=4cmTSA of resulting cuboid=2(lb+bh+hl)=(8*4+4*4+4*8)=32+16+32=64+16Answer=80Cm^2Hence,Total surface area of resulting cuboid is 80cm^2.........................................................


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