Question

3. The lateral surface area of a cuboid whose length, breadth and height are 2a, 2b and 2c respectively is. a) 2(ab+bc+ca) b) 4(ab+bc+ca) c) 8(a+b)c d) none of these​

Answer 1

Answer:

(c) 8(a+b)c

Step-by-step explanation:

length=2a

breadth=2b

height=2c

Lateral surface area of a cuboidal box=2(lh+bh)

=2[(2a)(2c)+(2b)(2c)]

=2[4ac+4bc]

=2×4c(a+b)=8c(a+b) or 8(a+b)c

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Answer 2

$\colour{yellow}{option_a_is_correct_(2(ab+bc+ca)}$