Step 1: Locate the coordinates of the endpoints.

The two endpoints M (2, 1) and N (6, 4). Therefore, (x_1, y_1) =

(2, 1) and (x_2, y_2) = (6, 4).

Step 2: Plug the corresponding coordinates into the Distance Formula. .

FORMULA:

d = \sqrt{(x_2-x_1)^2+(y_2-y_1)^2}

Endpoints M (2, 1) and N (6, 4).

d = \sqrt{(6 - 2)^2 + (4 - 1)^2}

Step 3: Calculate the subtraction in parentheses.

d = \sqrt{4^2 + 3^3}

Step 4: Square the value in parentheses.

d = \sqrt{16 + 9}

Step 5: Add numbers and take out the number under the radical sign.

d = \sqrt{25}

d = 5

Hence, the length of AB = 5 units

I found an answer from www.khanacademy.com

Midpoint formula: how to **find** midpoint (video) | Khan Academy

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y

For more information, see Midpoint formula: how to **find** midpoint (video) | Khan Academy

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**Distance** formula | Analytic **geometry** (video) | Khan **Academy**

Learn how to **find** the **distance between two points** by using the distance ... 4)
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you ... 'Well the **length** is just the change in X, since its a **straight line** - thats 5 - -**2**
= 7. ... how to take the **distance between** any **two points** in our x, y **coordinate**
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For more information, see **Distance** formula | Analytic **geometry** (video) | Khan **Academy**

I found an answer from sumo.stanford.edu

SMT 2011 General Test and Solutions February 19, 2011 1. Let F(x ...

Feb 19, 2011 **...** Finally, setting x = −1, we **get** that F(−1) + F(**2**) = **0**. ... **7**/**4**. 1−**2**/3. = 21. **4** .
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these **lengths**, either **zero** digits are 1 or one digit is 1. ... Let ABC be any triangle,
and D,E,F be points on BC, CA, **AB** such that CD = 2BD, AE = 2CE.

For more information, see SMT 2011 General Test and Solutions February 19, 2011 1. Let F(x ...

I found an answer from www.quora.com

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A (**4**, **2**), **B** (1, -**2**), and C (-**2**, 6): These are the co-ordinates of a triangle with sides
**AB**, BC, and CA. ... Now you can **calculate** the **length** of AD by distance formula.
... A=17,**4** is a vertex of triangle ABC and O=**0**,**0** is its circumcenter. P, Q, and R
are the midpoint of sides **AB**, BC, and CA respectively. ... =root over 49/**4** =**7**/**2**
units.

For more information, see How to **find** the **length** of the median of triangle ABC with the ...