Question

surface area of cuboid is 236cm find length if breadth and height are 5cm and 8cm respectively​

Answer 1

Answer:

Step-by-step explanation:

Given,

Surface area = 236cm^2

Breadth = 5cm

Height = 8cm

To find,

Length = ?

$Surface area of cuboid = 2(lb + bh + hl)$

By using the given formula,

236 = 2(L*5 + 5*8 + 8*L)

236 = 2(5L + 40 + 8L)

236 = 2(13L + 40)

236 = 26L + 80

236 - 80 = 26L

156 = 26L

Therefore, L = 156 / 26 = 6cm

Therefore, the length of the cuboid is 6cm .

This is your answer.

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Answer 2

Hello there !

question:-

surface area of cuboid is 236cm find length if breadth and height are 5cm and 8cm respectively

Given :-

S.A = 236 cm²

breadth = 5 cm

height = 8 cm

To find :-

Length of the cuboid

Solution :-

$total \: surface \: area \: of \: cuboid \: = 2(lb + bh + hl)$

putting the values in the formula:-

$236 = 2(l(5) + 5 \times 8 + 8(l)) \\ 236 = 2(5l + 40 + 8l) \\ 236 = 2(13l + 40) \\ 236 = 26l + 80 \\ 156 = 26l \\ l = \frac{156}{26} = 6$

therefore, the length of the rectangle is 6 cm.

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