Question

Q 19. If two litres of paint are
needed to cover all sides of one
cube, how many litres are needed
to cover all the exposed surfaces of the figure below? Assume the
bottom of the figure is also exposed and there are no hidden
Cubas​

Answer 1

Step-by-step explanation:

square meter that is 1 millimeter thick also contains 1 liter.

1 ltr is 1m x 1m x 1mm

The next time you are at the store take a minute and look on the labels to see how many liters (or milliliters) are in each container!

Answer 2

Answer:

12.3 litres paint are needed to cover all the exposed surfaces of the cube

Step-by-step explanation:

Given: Two litres of paint are needed to cover all sides of one

cube.

To find: How many litres are needed to cover all the exposed surfaces of the cube

Solution:

Given paint needed to cover all the sides of one cube  = 2 litre

let we assume that,

The side of the cube = 1 unit

Then area of the cube = 6 units

Paint required to paint one side = 2/6 litres

                                                     = 1/3 litres

Paint required to paint one side of the cube is =1/3 litres.

As per the given statement 37 sides are exposed as they said the bottom sides are exposed.

Therefore,

Paint requires to paint 37 sides  = $37$ ×$\frac{1}{3}$ litres

                                                     =  12.3 litres

Final answer:

12.3 litres paint are needed to cover all the exposed surfaces of the cube

#SPJ3