Similar Triangles and Figures, Enlargement Ratios & Proportions Geometry Word Problems

This geometry video tutorial provides a basic introduction on similar triangles and similar figures. It explains how to find the missing side using the proportions of similar triangles and even similar trapezoids. It explains how to solve for x as it relates to missing sides and missing angles. It discusses how to calculate the enlargement ratio and how to use it to determine the perimeter area of another triangle. This tutorial contains plenty of examples and practice problems.

Polygons:

Quadrilaterals:

Skew Lines:

Points, Lines, Planes, & Segments:

Triangles – Basic Introduction:

Number of a Diagonals In a Polygon:

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Ratios and Proportions – Means Extreme:

Similar Triangles – Enlargement Ratios:

Triangle Similarity – SSS, SAS, & AAA:

Triangle Proportionality Theorem:

Altitude on Hypotenuse Theorem:

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Pythagorean Theorem:

The Distance Formula:

Distance Between 2 Points – 3D:

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