Updated: Feb 15
This post explains and give practice opportunities related to TEKS 4.7E:
determine the measure of an unknown angle formed by two non-overlapping adjacent angles given one or both angle measures
Students learn that adjacent angles that add up to 90 degrees are considered complementary angles and adjacent angles that add up to 180 degrees are considered supplementary angles.
Between 2016 and 2021, this supporting standard has been tested 3 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 4th grade TEKS review series, click here.