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

Find the area of the base:

Area = Length x Breadth

Area = 10 x 7.5 = 75 cm²

Find the area of the 4 walls:

Area = Perimeter x Height

Area = 2( 10 + 7.5) x 3.8

Area = 133 cm²

Find the total surface area:

Total surface area = Area of the base + Area of the 4 walls

Total surface area = 75 + 133 = 208 cm²

Answer: The total surface area is 208 cm²

Answer 2

ANSWER :-


208 cm²


EXPLAINATION :-


Firstly ,

We have to find the area of the base

Area = Length x Breadth

Area = 10 x 75 / 10

=> 75 cm²


Now ,

We have to find the area of the 4 walls

Area = Perimeter x Height

Area = 2 ( 10 + 75 / 10 ) x 38 / 10

Now , Simplify it

We will get :-

=> 133 cm²


Now ,

We have to find the total surface area

Total surface area = 75 + 133

=> 208 cm²