Question

The diamensions of cuboid are 4 m, 2.5m & 1.5 m & it will be covered its outer side with
colour paper, then how much colour paper is required for it.
A) 39.5 sq.m B) 37.5 sq.m. C) 49.5 sq.m. D) 45 sq.m.​

Answer 1

Answer:

option is A bro follow me for more answers

Answer 2

Answer:

A) 39.5

Step-by-step explanation:

Dimensions were given, i.e., 4m,2.5m and 1.5m of that cuboid.

So, it's outer side will be it's surface area, i.e.

2×length×breadth + 2×breadth×height + 2×length×height.

or,

2(lb+bh+hl)

Let's take,

length= 4m

breadth = 2.5m

height = 1.5m

So Now,

Surface area = 2(lb+bh+hl)

=2{(4×2.5)+(2.5×1.5)+(1.5×4)}

=2(10+3.75+6)

=2×19.75

=39.5 sq.m

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