If you're seeing this message, it means we're having trouble loading external resources for Khan Academy.

If you're behind a web filter, please make sure that the domains *.kastatic.org and *.kasandbox.org are unblocked.

Solving problems with similar and congruent triangles

5 videos
1 skill
We spend a lot of time in geometry proving that triangles are congruent or similar. We now apply this ability to some really interesting problems (seriously, these are fun)!

Finding area using similarity and congruence

VIDEO 10:07 minutes
Example of using similarity and congruence to find the area of a triangle

Challenging similarity problem

VIDEO 9:53 minutes
Interesting similarity problem where we don't have a lot of information to work with