Question

one side of a cube is 0.3 M . the cube has to be covered by tin sheet How much sheet would be required ? if sheet cost RS 150 per Sam , find total cost

Answer 1

Given:- Side of cube is 0.3 m

Rate of tin sheet is ₹150/m²

Let's Start:- Total Surface Area of Cube = 6 × side²

                                                                 ⇒ 6 × (0.3 m)²

                                                                 ⇒ 6 × 0.09 m²

                                                                 ⇒ 0.54 m²

∴ Total tin sheet required = 0.54 m²

now, Cost of Tin sheet = ₹150/m² × 0.54 m²

                                     ⇒ ₹81

Hence, Cost of Tin sheet = ₹81

Answer 2

Answer:

Answer

We know that

Area of steel metal = Total cost / Cost per m

2

By substituting values

Area of sheet metal =

120

6480

So we get

Area of sheet metal =54 m

2

So we get

Area of sheet metal =2(1b+bh+h1)

54=2(5×3+3×h+h×5)

On further calculation

27=15+3h+5h

So we get

8h=12

By division

h=1.5m

Therefore, the height of sheet metal is 1.5m