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2 resources with the keyterm sum of angles in triangle

Videos (Over 2 Million Educational Videos Available)
Population Genetics Video
2:45
Population Genetics
The Circulatory System Part 1: The Heart Video
8:55
The Circulatory System Part 1: The Heart
Cells - Overview & Introduction Video
4:07
Cells - Overview & Introduction
Other Resource Types (2)
Lesson Planet

Find the Missing Angle

For Teachers 7th - 9th Standards
This one activity requires young geometers to pull together information they are currently learning with things they have learned previously. Here they rely on understanding something about parallel lines, alternative interior angles,...
Lesson Planet

Find the Angle

For Teachers 7th - 10th Standards
This a fun problem for young geometers to play with while gaining important insight into deductive reasoning. Some will find the answers very quickly, others might take a less direct path, but all will use their knowledge of the sum of...