two cubes of 8 cm edge are jioned together, find thr surface area of the resulting cuboid
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640 cm2
Step-by-step explanation:
two cubes are joined
so the resulting height of cube remains same i.e. 8cm
new length=(8+8) cm=16cm
and breadth remains 8cm
so the surface area =2(lengthxbreadth+breadthxheight+heightxlength)
=2(16x8+8x8+8x16)
=2(128+64+128)
=2x320
=640
hope it's correct..I mean i hope that I have calculated it correctly !
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