Question

5. The length of a cuboid having breadth = 4 cm, height = 4 cm and total surface
area = 148 cm²,is
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Answer 1

Answer:

249 is the answer

Step-by-step explanation:

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Answer 2

Answer:

7.25 is the answer

Step by step explaination:

Given,

L=?

B=4cm

H=4cm

Tsa=148cm²

Total surface area of cuboid = 148cm²

148cm² = 2(lb+bh+hl)

148 = 2(l×4+4×4+4×l)

148 = 2(4l+16+4l)

148 = 2(8l+16)

148 = 16l+32

148-32 = 16l

116 = 16l

116/16 = l

7.25 = l

hence, l=7.25cm