Lesson 7.4: Find Distance in Between Points

Lesson 7.4

​Find Distance in the Coordinate Plane

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​Definition:

Coordinate Plane: A coordinate plane is a two dimensional plane with an x and y axis. We use the coordinate plane to map coordinates, and draw figures.

Subject | Subject

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​How to find distance in the coordinate plane:

​ 1. Create a right triangle where the distance between your two points is the hypotenuse.

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2. ​Find the the length of your two legs, these will be your a and b value.

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3. Use the a and b values to solve the​ pythagorean theorem.

​Ex: Find the distance between D and A.

Multiple Choice

Find the distance between the two points.

• 6

• 2

• $$\sqrt[]{40}$$  

• 40

Multiple Choice

Find the distance between the two points.

• 6

• 5

• 13

• 7.8

​Find the Perimeter of the Triangle:

Multiple Choice

Find the perimeter of the triangle:

• 18.8

• 5

• 6

• 7.8

​Conclusion: Write two complete sentences about what you learned.