# Three points 2

The three points are A(3, 8), B(6, 2), and C(10, 2). Point D is such that the line DA is perpendicular to AB, and DC is parallel to AB. Calculate the coordinates of D.

## Correct answer:

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**Dr Math**

too complicated solution can be found at:

http://oalevelsolutions.com/solutions/cie_gce_as_maths_p1

http://oalevelsolutions.com/solutions/cie_gce_as_maths_p1

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

**geometry**- analytic geometry
- line segment
- vector
- scalar product
**algebra**- equation
- system of equations
**planimetrics**- right triangle

### Units of physical quantities:

### Grade of the word problem:

We encourage you to watch this tutorial video on this math problem: video1

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