# Rectangle 7768

The base of a cuboid is a rectangle. The ratio of its length to width is 3:2. The length of the rectangle of the base is in the ratio of 4:5 to the height of the block. The sum of the lengths of all the edges of the block is 2.8m. Find:

a) the surface of the cuboid in cm

b) volume in dm

a) the surface of the cuboid in cm

^{2}b) volume in dm

^{3}### Correct answer:

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#### You need to know the following knowledge to solve this word math problem:

**algebra**- equation
- system of equations
- expression of a variable from the formula
**solid geometry**- cuboid
- surface area
**planimetrics**- rectangle
**basic functions**- ratio

#### Units of physical quantities:

#### Grade of the word problem:

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