We found 525 reviewed resources for Isosceles Triangle
Pythagoras Rectangles and Isosceles Triangles
6 mins 7th - 12th CCSS: Adaptable
New ReviewWhen does the Pythagorean Theorem come in handy? An intriguing video uses the Pythagorean Theorem to solve problems other than simply finding the length of a side of a right triangle. Pupils find the diagonal of a rectangle and the...
Base Angles of Isosceles Triangles
9th - 10th CCSS: Designed
Build confidence in proofs by proving a known property. Pupils explore two approaches to proving base angles of isosceles triangles are congruent: transformations and SAS. They then apply their understanding of the proof to more complex...
Isosceles Triangles and Special Line Segments
9th - 12th CCSS: Adaptable
Under which conditions can a triangle be classified as isosceles? High schoolers practice identifying isosceles triangles and special line segments, including angle bisectors, medians of triangles, and perpendicular bisectors of sides of...
The Isosceles Triangle Theorem is Actually Really Simple!
7 mins 9th - 12th CCSS: Adaptable
The isosceles triangle comes with its own set of properties. A lecturer shows how to apply the Isosceles Triangle Theorem to find missing side lengths or angle measures. The final example involves both square roots and quadratic equations.
Equilateral Triangles: Lesson
3 mins 8th - 11th CCSS: Adaptable
Take a second look at triangles that are equal all the way around. The video reminds viewers what an equilateral triangle is and points out that the three angles are the same. Using the fact that equilateral triangles are also isosceles,...
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