Understanding the Coordinates of a Rhombus

Oct 13, 2025 by wbrum.org 60 views

A rhombus is a special type of quadrilateral where all four sides are of equal length. In this article, we will explore the coordinates of a rhombus and calculate its area using the given coordinates.

Understanding the Coordinates of a Rhombus

The coordinates of a rhombus are given as ${$ A(-4,-2), B(-2,6), C(6,8)$}$, and ${$ D(4,0)$}$. To understand the properties of a rhombus, we need to find the lengths of its diagonals. The diagonals of a rhombus bisect each other at right angles.

Calculating the Length of Diagonals

To calculate the length of the diagonals, we can use the distance formula. The distance formula is given by:

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

where ${(x_1, y_1)}$ and ${(x_2, y_2)}$ are the coordinates of two points.

Calculating the Length of Diagonal AC

Using the distance formula, we can calculate the length of diagonal AC as follows:

${d_{AC} = \sqrt{(6 - (-4))^2 + (8 - (-2))^2}}$ ${d_{AC} = \sqrt{(10)^2 + (10)^2}}$ ${d_{AC} = \sqrt{100 + 100}}$ ${d_{AC} = \sqrt{200}}$ ${d_{AC} = 14.14}$

Calculating the Length of Diagonal BD

Using the distance formula, we can calculate the length of diagonal BD as follows:

${d_{BD} = \sqrt{(4 - (-2))^2 + (0 - 6)^2}}$ ${d_{BD} = \sqrt{(6)^2 + (-6)^2}}$ ${d_{BD} = \sqrt{36 + 36}}$ ${d_{BD} = \sqrt{72}}$ ${d_{BD} = 8.49}$

Calculating the Area of the Rhombus

The area of a rhombus can be calculated using the formula:

${A = \frac{1}{2} \times d_1 \times d_2}$

where ${d_1}$ and ${d_2}$ are the lengths of the diagonals.

Substituting the values of ${d_{AC}}$ and ${d_{BD}}$ , we get:

${A = \frac{1}{2} \times 14.14 \times 8.49}$ ${A = 60.01}$

Rounding to the nearest whole number, the area of the rhombus is approximately 60 square units.

Conclusion

In this article, we have explored the coordinates of a rhombus and calculated its area using the given coordinates. We have also discussed the properties of a rhombus and how to calculate the length of its diagonals. The area of the rhombus is approximately 60 square units.

References

[1] Khan Academy. (n.d.). Rhombus. Retrieved from https://www.khanacademy.org/math/geometry/geometry-quadrilaterals/geometry-rhombus/v/rhombus
[2] Math Open Reference. (n.d.). Rhombus. Retrieved from https://www.mathopenref.com/rhombus.html

Discussion

What do you think about the properties of a rhombus? Have you ever encountered a rhombus in real-life situations? Share your thoughts and experiences in the comments below!