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• ### Constructing 30- and 45-Degree Angles — Prac

When you deal with geometry problems where you have to construct 30- and 45-degree angles, you may need to do more than...

In Geometry

• ### Geometric Proofs with Overlapping Triangles —

In geometry, you may be asked to formulate a proof with overlapping triangles. In order to prove parts of a triangle are...

In Geometry

• ### The Euler Line — Practice Geometry Questions

In geometry, the Euler line is a serious multi-tasker: it contains the centroid, circumcenter, and orthocenter of a triangle. If you know any two of t...

In Geometry

• ### Dilation Scaling — Practice Geometry Questio

In geometry, a dilation is a transformation that changes only the size of a geometric shape, while leaving its shape and orientation unchanged. In the...

In Geometry

• ### Proofs and Triangle Congruence Theorems — Pr

In geometry, you may be given specific information about a triangle and in turn be asked to prove something specific abo...

In Geometry

• ### Proofs with Proportional Triangles — Practic

Say that you have two triangles and you need to prove that the sides of the triangles are in proportion to each other. H...

In Geometry

• ### Rigid Motion of Objects — Practice Geometry

In geometry, a transformation can change the size, location, or appearance of a geometric figure. Rigid motion refers to a limited transformation: onl...

In Geometry

• ### Right Triangle Proportions — Practice Geomet

When you draw an altitude to the hypotenuse of a right triangle, you create two new triangles with some interesting prop...

In Geometry

• ### Triangle Classification Using Sides — Practi

You can classify equilateral, isosceles, scalene, and right triangles based on their side measurements. The following pr...

In Geometry

• ### Trigonometric Ratios in Right Triangles — Pr

In geometry, if you’re given a right triangle with missing angles or sides, you can use trigonometric ratios—...

In Geometry