# Right-angled 66344

From a square with a side of 4 cm, we cut four right-angled isosceles triangles with right angles at the square's vertices and with an overlap of √2 cm. We get an octagon. Calculate its perimeter if the area of the octagon is 14 cm

^{2}.### Correct answer:

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

**arithmetic**- square root
**planimetrics**- Pythagorean theorem
- right triangle
- polygon
- area of a shape
- perimeter
**numbers**- fractions

#### Units of physical quantities:

#### Grade of the word problem:

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