# Two bodies

The rectangle with dimensions 8 cm and 4 cm is rotated 360º first around the longer side to form the first body. Then, we similarly rotate the rectangle around the shorter side b to form a second body. Find the ratio of surfaces of the first and second bodies.

## Correct answer:

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

**algebra**- expression of a variable from the formula
**arithmetic**- division
**solid geometry**- cylinder
- surface area
**planimetrics**- area of a shape
- rectangle
**basic functions**- ratio

### Units of physical quantities:

### Grade of the word problem:

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