How to Find the Ratio of a Rectangle in Geometry

Ratios with rectangles deal with the measurement of one side compared to the other.
••• Thomas Northcut/Photodisc/Getty Images

Rectangles have four sides, and generally the adjacent sides are not equal. Knowing the measurements of the two sides allows you to create a ratio of the rectangle. This tells you how much bigger one side is compared to the other side. This is used in basic geometry and helps students understand properties of a rectangle. If you know the ratio of a rectangle and know the measurement of one side, you can calculate the adjacent side.

    Measure your rectangle's sides. For example, assume your rectangle has a side of 8 inches and another of 4 inches.

    Set up a ratio where your large side is on top of the fraction and the smaller side is on the bottom of the fraction. In the example, 8 inches / 4 inches.

    Divide the ratio, then set the bottom number to one. In the example, 8 divided by 4 equals 2. So your ratio is 2 to 1.

    Tips

    • Rectangles with the same length-to-width ratios are considered similar.

Related Articles

How to Calculate Angle From Sin
How to Calculate Perimeter and Area Ratio
How to Convert Inches to 16ths of an Inch
How to Calculate Sides of a Triangle
How to Find Slope With Two Coordinates
How to Bisect a Triangle
How to Find the Area of Triangles & Trapezoids
How to Find the Missing Side of a Right Triangle
How to Find the Volume of a Parallelogram
How to Find the Distance Between Two Points on a Circle
How to Divide a Fraction in Half
How to Change a Ratio Into a Decimal
How to Find the Height of a Rhombus
How to Convert Inches to Cubic Feet
How to Calculate the Diameter of a Rectangle
Characteristics of Aquatic Plants
How to Find Ratios
How to Figure Out Square Feet
How to Convert cm to Meters Squared
How to Find the Perimeter of a Semi Circle

Dont Go!

We Have More Great Sciencing Articles!