# Distance problem 2

A=(x,2x)

B=(2x,1)

Distance AB=√2, find the value of x

B=(2x,1)

Distance AB=√2, find the value of x

## Correct answer:

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

**geometry**- analytic geometry
**algebra**- quadratic equation
- equation
**planimetrics**- Pythagorean theorem
- right triangle
- triangle

### Units of physical quantities:

### Grade of the word problem:

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