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Eva8 [605]
3 years ago
8

Pls help me get full marks

Mathematics
2 answers:
soldier1979 [14.2K]3 years ago
7 0

Answer:

A is smaller

Step-by-step explanation:

Container A

A = 2π·r·h + 2π·r²

= 2π·r(h + r)

r = d/2 = 54mm/2 = 27 mm

h = 4d = 4·54mm = 216 mm

= 2·3.14·27(216 + 27)

= 169.56×243

= 41203.08 mm²

Container B

A = 4·l·h + 2·l²

l = 2d = 2·54mm = 108 mm

h = d = 54 mm

= 4·108·54 + 2·11664

= 23328 + 23328

= 46656 mm²

wlad13 [49]3 years ago
5 0

Answer:

A is smaller

Step-by-step explanation:

Radius = 54/2 = 27

Cylinder:

SA = 2×3.15×27² + 2(3.14×27×(4×54))

= 41203.08 mm²

Cuboid:

SA = 2[(2×54)²] + 4[54×(2×54)]

= 46656 mm²

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