<img src="https://d5nxst8fruw4z.cloudfront.net/atrk.gif?account=iA1Pi1a8Dy00ym" style="display:none" height="1" width="1" alt="" />

# Triangle Sum Theorem

## Interior angles add to 180 degrees

Levels are CK-12's student achievement levels.
Basic Students matched to this level have a partial mastery of prerequisite knowledge and skills fundamental for proficient work.
At Grade (Proficient) Students matched to this level have demonstrated competency over challenging subject matter, including subject matter knowledge, application of such knowledge to real-world situations, and analytical skills appropriate to subject matter.
Advanced Students matched to this level are ready for material that requires superior performance and mastery.

## SLT 40 Prove & apply interior angles of a triangle have a sum of 180 degrees.

MEMORY METER
This indicates how strong in your memory this concept is
0

## Triangle Sum Theorem: Introduction

Recognize the sum of the interior angles of a triangle as 180 degrees
MEMORY METER
This indicates how strong in your memory this concept is
0