### Identifying Divisibility by Looking at the Final Digits

You can tell whether a number is divisible by 2, 5, 10, 100, or 1,000 simply by looking at...

In Pre-Algebra

You can tell whether a number is divisible by 2, 5, 10, 100, or 1,000 simply by looking at...

In Pre-Algebra

Not only can polygons be classified by the number of sides they have and by their angles,...

In Geometry

The basic idea behind copying a given angle is to use your compass to sort of measure how...

In Geometry

The key to copying a given line segment is to open your compass to the length of the segme...

In Geometry

If you’re given two points on the coordinate plane, you can find the locus of points...

In Geometry

If you’re given two points, and you’re asked to find the locus of points equid...

In Geometry

In two-dimensional locus problems, all the points in the locus solution lie in a plane. Th...

In Geometry

A glide reflection involves three reflections, and so it can be challenging to find the lo...

In Geometry

A glide reflection is just what it sounds like: You glide a figure (that’s just anot...

In Geometry