# Triangle ABC is formed by the points A(3, 4), B(2, 6), and C(5, 8). Find angle A to the nearest tenth of a degree?

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Triangle ABC is formed by the points A(3, 4), B(2, 6), and C(5, 8). Find angle A to the nearest tenth of a degree.

Triangle ABC is formed by the points A(3, 4), B(2, 6), and C(5, 8). Find angle A to the nearest tenth of a degree.

##### 1 Answer

Apr 11, 2018

The measure of angle

#### Explanation:

I will solve this using the Law of Cosines which states that for a triangle, with side lengths,

Solving this for

Let's first calculate

Plugging these values into our formula for A gives