Handout
Cuemath

Cuemath: Angles

For Students 9th - 10th Standards
A comprehensive guide for learning all about angles with definitions, examples, and practice questions.
Unknown Type
Mr. Martini's Classroom

Mr. Martini's Classroom: Geometry Special Angle Pairs and Parallel Transversals

For Students 3rd - 8th Standards
Students are challenged to identify and measure angles created by parallel lines and a transversal as well as complementary and supplementary pairs.
eBook
CK-12 Foundation

Ck 12: Interactive Geometry: 1.3 Polygons

For Students 9th - 10th
Explore the structure and measurement of polygons.
Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: 8.g Tile Patterns I: Octagons and Squares

For Teachers 8th Standards
Eighth graders are presented with a tile pattern showing an apparent square surrounded by four octagons. They are asked to answer a question about congruency and angle measurements, as well as prove that the interior shape is really a...