Updated: Oct 8, 2021
This post explains and give practice opportunities related to TEKS 3.7B:
determine the perimeter of a polygon or a missing length when given perimeter and remaining side lengths in problems
Perimeter is more than just adding up all the sides. Sometimes students are given a perimeter and need to use that to find missing sides.
Between 2016 and 2021, this readiness standard has been tested 10 times on the STAAR test. Videos explaining each problem can be found below. If you'd rather take a quiz over these questions, click here. The videos below are linked to each question in the quiz as answer explanations after the quiz is submitted.
To view all the posts in this 3rd grade TEKS review series, click here.