Distance Between Points
Grade 6 Math Worksheets
The distance between two points in mathematics is a measure of how far apart those two points are in space. It’s a fundamental concept in geometry, and it’s used in various fields of mathematics and science. The distance between two points can be calculated in different ways, depending on whether you are working in a one-dimensional, two-dimensional, or three-dimensional space.
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Distance Between Points - Grade 6 Math Worksheet PDF
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Here, I’ll explain how to calculate the distance between points in two and three dimensions, which are the most common cases.
Distance between Two Points in Two-Dimensional Space
In a two-dimensional (2D) plane, such as a piece of paper, the distance between two points (x1, y1) and (x2, y2) can be calculated using the Pythagorean theorem. The formula is:
Distance = √((x2 – x1)² + (y2 – y1)²)
Here’s how it works:
(x1, y1) represents the coordinates of the first point.
(x2, y2) represents the coordinates of the second point.
(x2 – x1) represents the horizontal (x) difference between the two points.
(y2 – y1) represents the vertical (y) difference between the two points.
The square of these differences is added together, and then the square root is taken to get the distance.
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The formula is explained in better way by means of the graph given below:
The following explain makes you understand better by means of an example given below:
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Solved Problems
Problem 1
Find the distance between the points A(3, 4) and B(6, 8).
Solution
To find the distance between two points (x₁, y₁) and (x₂, y₂), you can use the distance formula:
Distance = √((x₂ – x₁)² + (y₂ – y₁)²)
In this case:
Distance = √((6 – 3)² + (8 – 4)²)
Distance = √(3² + 4²)
Distance = √(9 + 16)
Distance = √25
Distance = 5 units
So, the distance between A(3, 4) and B(6, 8) is 5 units.
Problem 2
Calculate the distance between the points C(-2, 5) and D(1, -1).
Solution
Using the distance formula again:
Distance = √((1 – (-2))² + (-1 – 5)²)
Distance = √(3² + (-6)²)
Distance = √(9 + 36)
Distance = √45 units
Problem 3
Find the distance between points E(0, 0) and F(3, 4).
Solution
Using the distance formula:
Distance = √((3 – 0)² + (4 – 0)²)
Distance = √(3² + 4²)
Distance = √(9 + 16)
Distance = √25
Distance = 5 units
Problem 4
Determine the distance between points G(5, -2) and H(-3, 7).
Solution
Using the distance formula:
Distance = √((-3 – 5)² + (7 – (-2))²)
Distance = √((-8)² + (7 + 2)²)
Distance = √(64 + 81)
Distance = √145 units
Problem 5
What is the distance between points I(-1, -1) and J(4, 5)?
Solution
Using the distance formula:
Distance = √((4 – (-1))² + (5 – (-1))²)
Distance = √(5² + 6²)
Distance = √(25 + 36)
Distance = √61 units
Problem 6
Calculate the distance between points K(2, 3) and L(2, -2).
Solution
Using the distance formula:
Distance = √((2 – 2)² + (-2 – 3)²)
Distance = √(0² + (-5)²)
Distance = √25
Distance = 5 units
Problem 7
Find the distance between points M(1, 1) and N(7, 7).
Solution
Using the distance formula:
Distance = √((7 – 1)² + (7 – 1)²)
Distance = √(6² + 6²)
Distance = √(36 + 36)
Distance = √72 = 6√2 units
Problem 8
Determine the distance between points O(-3, 2) and P(5, 2).
Solution
Using the distance formula:
Distance = √((5 – (-3))² + (2 – 2)²)
Distance = √(8² + 0²)
Distance = √64
Distance = 8 units
Problem 9
Calculate the distance between points Q(4, 1) and R(4, -5).
Solution
Using the distance formula:
Distance = √((4 – 4)² + (-5 – 1)²)
Distance = √(0² + (-6)²)
Distance = √36
Distance = 6 units
Problem 10
What is the distance between points S(0, 0) and T(-3, -4)?
Solution
Using the distance formula:
Distance = √((-3 – 0)² + (-4 – 0)²)
Distance = √((-3)² + (-4)²)
Distance = √(9 + 16)
Distance = √25
Distance = 5 units
Frequently Asked Questions
What is the distance between two points in mathematics?
The distance between two points in mathematics is the length of the straight line segment that connects those two points in Euclidean space (like a plane or three-dimensional space).
How is the distance between two points calculated?
The distance between two points, usually denoted as “d,” can be calculated using the distance formula: √((x2 – x1)² + (y2 – y1)²) in a two-dimensional space.
What are the coordinates of a point?
The coordinates of a point represent its location in a coordinate system. In a two-dimensional Cartesian coordinate system, a point is represented by (x, y), and in a three-dimensional system, it’s represented by (x, y, z).
Can you provide an example of calculating the distance between two points?
If you have two points A(3, 4) and B(1, 7), you can calculate the distance using the distance formula:
√((1 – 3)² + (7 – 4)²) = √((- 2)² + (3)²) = √(4 + 9) =√13
Are there different ways to calculate the distance between points?
Yes, there are various distance metrics, such as the Manhattan distance, which considers the sum of the absolute differences in coordinates (e.g., |x2 – x1| + |y2 – y1|). The choice of method depends on the problem and the nature of the space.
How can I find the distance between points in a real-world scenario?
In real-world applications, you may use the distance formula to find the distance between geographical coordinates (latitude and longitude) for navigation or the distance between two objects in a 3D space, such as the distance between two points in 3D modeling or physics problems.
Are there any online tools or calculators for finding the distance between points?
Yes, there are many online distance calculators and apps that can compute the distance between points for you. These are especially helpful when working with geographic coordinates.
What is the significance of finding the distance between points in mathematics?
Calculating the distance between points is fundamental in various mathematical and scientific fields, including geometry, trigonometry, physics, and computer science. It is used to solve problems related to navigation, optimization, and determining relationships between objects in space.
Are there any special cases or exceptions when calculating distances between points?
In some cases, you may consider alternative distance metrics or account for different coordinate systems, such as polar coordinates. Additionally, distance calculations can be more intricate when working with complex shapes or curved spaces (non-Euclidean) and may require specialized formulas.
Gloria Mathew writes on math topics for K-12. A trained writer and communicator, she makes math accessible and understandable to students at all levels. Her ability to explain complex math concepts with easy to understand examples helps students master math. LinkedIn
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