# 7th Grade Math - Sum of Angles in a Triangle

Updated: Feb 13

This post explains and give practice opportunities related to TEKS 7.11C:

write and solve equations using geometry concepts, including the sum of the angles in a triangle, and angle relationships

## Instruction

Students use their knowledge of angles in a triangle to solve geometric problems.

## STAAR Practice

Between 2016 and 2022 (including redesign practice), this supporting standard has been tested 6 times on the STAAR test. Videos explaining the problems can be found below. If you'd rather take a quiz over these questions, click __here__. The videos below are linked to the questions in the quiz as answer explanations after the quiz is submitted.

To view all the posts in this 7th grade TEKS review series, click __here__.