Question

the cuboidal closed tank of iron sheet is made having 10m length, 8m breadth and 3m height. Determine the cost of iron sheet used at the rate of rupees 50 per m square​

Answer 1

Answer:

length of cuboidal closed tank=10m

breadth" " " " " " " " " " " " " " =8m

height" " " " " " " " " " " " " " "= 3m

total surface area = 2(lb + bh + lh)sq. units

2(10×8 + 8×3 + 10×3) m^2

2×(80 + 24 + 30) m^2

2 × 134 m^2

268 m^2

so,the cost of iron sheet per m^2 = rupees 50

the cost of 268 m^2 of iron sheet = 268 × 50= rupees 13,400