Similar Triangles Teacher Resources
Find Similar Triangles lesson plans and worksheets
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Inscribed Similar Triangles: Lesson
4 mins 6th - 12th CCSS: Adaptable
Create similar triangles with a little altitude. A section of an extensive playlist on basic geometry discusses how an altitude of a right triangle creates similar triangles. Using the theorem, the presentation finds unknown side...
A Geometry Worksheet - Similar Triangles
9th - 12th CCSS: Designed
In this similar triangles worksheet, students find the scale factor of 6 sets of similar triangles. Students find the scale factor of two similar triangles given a sketch with measurements. Students use proportions to find a missing side...
Kuta Software - Infinite Geometry: Similar Triangles
9th - 12th
In this similar triangles worksheet, high schoolers solve 20 short answer problems. Students determine if two given triangles are similar. High schoolers determine the type of similarity given two triangles. Students are given a sketch...
Measurement of Objects Using Similar Triangles in The Plane
9th - 11th
Young scholars use similar triangles and a sight tool to find the height and distance between large objects. In this similar triangles lesson plan, students use a constructed sight tool to measure the distance and height of an object...
Derive the Pythagorean Identity Using Similar Triangles
6 mins 9th - 12th CCSS: Designed
There are a number of ways to prove the Pythagorean Identity, sin2θ + cos2θ = 1. After a concise review of the definition of similar triangles, the video walks through a demonstration of the proof. This short presentation could be used...