Two cubes each of volume 512cm³ are joined end to end. Find the surface area of the resulting cuboid.
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Answered by
55
Volume of cune= s^3
512=s^3
cube root 512=s
8=s
side is 8 cm
Total length of the cuboid-8+8=16
Total breadth= 8
Total height=8
Total surface area of a cuboid= 2(lb+bh+lh)
TSa= 2(16×8+8×8+8×16)
Tsa=2×320
tsa=640cm^2
512=s^3
cube root 512=s
8=s
side is 8 cm
Total length of the cuboid-8+8=16
Total breadth= 8
Total height=8
Total surface area of a cuboid= 2(lb+bh+lh)
TSa= 2(16×8+8×8+8×16)
Tsa=2×320
tsa=640cm^2
mishrajahanvi4:
Great and thanks a lot
Answered by
30
Answer:
Total Surface area = 2 × 320
= 640 cm²
Hope it will be helpful ✌️
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