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