Main content
3rd grade
Unit 11: Lesson 2
Perimeter of polygons with missing side lengthsFind a missing side length when given perimeter
CCSS.Math: 3.MD.D.8
Problem
Stuck?
Stuck?
If you're seeing this message, it means we're having trouble loading external resources on our website.
If you're behind a web filter, please make sure that the domains *.kastatic.org and *.kasandbox.org are unblocked.