Now Loading: Find Missing Angles in Triangles and Quadrilaterals Need Some Extra Help? Try a Video Tutorial START Remove ads and gain access to the arcade and premium games! Subscribe Unlock harder levels by getting an average of 80% or higher. Earn up to 5 stars for each level The more questions you answer correctly, the more stars you'll unlock! Each game has 10 questions. Green box means correct. Yellow box means incorrect. Remove Ads Unlock harder levels by getting an average of 80% or higher. Earn up to 5 stars for each level The more questions you answer correctly, the more stars you'll unlock! Each game has 10 questions. Green box means correct. Yellow box means incorrect. More Ways To Use Math Games Game Quickplay Video Help Need some help or instruction on how to do this skill? Offline Worksheets Want a paper copy? Print a generated PDF for this skill. Share Skill Create Assignment Share MathGames with your students, and track their progress. Top Mathematicians Leaderboards See how you scored compared to other students from around the world. Start a MathJam Learn Math Together. Math Games for Teachers Share On Google Classroom Create a google class assignment that allows students to generate and complete their own worksheets Create Assignment Create a MathGames assignment using a Parent or Teacher account for a student on MathGames. Create Assessment Find out exactly what level your students are at with a detailed assessment of their skill level. Curriculum Information See what Common Core State Standard this skill aligns with. Copy This Link Into Your Lesson Plan Directly http://www.mathgames.com/skill/6.145-find-missing-angles-in-triangles-and-quadrilaterals This link leads directly to this skill, no student accounts needed. Copy To Clipboard Grade 6 - Geometry & Measurement Standard 6.GM.2.2 - Use the fact that the angle sum of triangles is 180º and quadrilaterals is 360º to find the missing interior angle. Included Skills: Develop and use the fact that the sum of the interior angles of a triangle is 180° to determine missing angle measures in a triangle. If you notice any problems, please let us know.