Question

Find the area of metal sheet required to make an open tank of length 10m breadth 7.5m and depth 3.8m

Answer 1

Answer:

Step-by-step explanation:

Given :-

Length of the tank = 10 m

Breadth of the tank = 7.5 m

Depth of the tank = 3.8 m

To Find :-

Area of metal sheet

Formula to be used :-

Area of four walls = 2[L+B]× H

Area of the floor = L × B

Solution :-

Area of four walls = 2[L+B] × H

⇒ Area of four walls = 2(10 + 7.5) × 3.8

⇒ Area of four walls = 2 × 17.5 × 3.8

⇒ Area of four walls = 35 × 3.8

⇒ Area of four walls = 133 m²

⇒ Area of the floor = L × B

⇒ Area of the floor = 10 x 7.5

⇒ Area of the floor  = 75 m ²

⇒ Area of metal sheet required to make the tank = Area of four walls + Area of floor  

⇒ Area of metal sheet required to make the tank = 133 m² + 75 m²

⇒ Area of metal sheet required to make the tank = 208 m²

Hence, The Area of metal sheet is 208 m².

Answer 2

Answer:

Area of meatel sheet should be use

= 283 m²

Step-by-step explanation:

Given that,

to make an open tank,

length(l) = 10 m

breadth(b) = 7.5 m

depth(h) = 3.8 m

For open tank it's area will be

2(lb + bh + lh) - lb

putting the values,

area = 2{10(7.5) + 7.5(3.8) + 10(3.8)}

= 2(75 + 28.5 + 38)

2(141.5)

= 283 m²

so,

Area of meatel sheet should be use

= 283 m²