Math, asked by shristikhadka00, 1 month ago

the total surface of area box is 62m with lenght 5m and breadth 3m find its height

Answers

Answered by jadhavtushar088
1

Answer:

Here, l = 1.5 m, b = 1.25 m

∵ It is open from the top.

∵ Its surface area = [Lateral surface area] + [Base area]

= [2(l + b)h] + [l × b]

= [2(1.50 + 1.25)0.65 m2] + [1.50 × 1.25 m2]

= [2 × 2.75 × 0.65 m2] + [1.875 m2]

= 3.575 m2 + 1.875 m2 = 5.45 m2

∵ The total surface area of the box = 5.45 m2

∴ Area of the sheet required for making the box = 5.45 m2

(ii) Rate of sheet = Rs. 20 per m2

Cost of 5.45 m2 = Rs. 20 × 5.45

⇒ Cost of the required sheet = Rs.109

Answered by wardagirl292
1

Answer:

Step-by-step explanation:Answer

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total surface area of cuboid

= 2(lb+bl+lh)

=2(5×4+4×3+3×3)

=2(20+12+9)

=2×41

=82 sq.m.

volume of cuboid

=lbh

=5×4×3

=60cu.m.

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