Question

12. A cuboid is open from top side and the area of its base is 18 m. Its dimensions are in the ratio of3:2:1 in length, breadth and height respectively. Find the lateral surface area of the cuboid​

Answer 1

Step-by-step explanation:

when the length breadth and height are in the ratio is 3:2:1

then the ratio of the length and breadth should be in ratio 3:2

therefore we can say that 3x be the length and 2x be the breadth

if the area of the base be 18cm

then 3x×2x = 18

= 6x =18

= x=2

thus the lateral surface area of the cuboid =

2h ( length + breadth)+ base area

2*(1×2)(3×2+2×2)+base area

2×2×(6+4)+18

4×10+18

58cm^3

hope this would help