# Regular polygons

Two regular polygons, x and y, are such that the number of sides of x is three more than the number of the sides of y. If the sum of the exterior angles of x and y is 117°, how many sides have x?

## Correct answer:

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

**algebra**- quadratic equation
- equation
**arithmetic**- addition
**planimetrics**- polygon
- triangle
**basic functions**- ratio
**numbers**- fractions

### Units of physical quantities:

### Grade of the word problem:

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