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6th Grade Math - Area Formulas

Updated: Nov 27, 2022

This post explains and give practice opportunities related to TEKS 6.8B:

model area formulas for parallelograms, trapezoids, and triangles by decomposing and rearranging parts of these shapes


Area formulas should be memorized but that doesn't mean students should know how to derive them. Here's how to find the formula for the area of a triangle.

Here's a video showing how to derive the area of a parallelogram.

Finally, the formula for area of a trapezoid can be represented multiple ways.


STAAR Practice

Between 2016 and 2022, this supporting standard has been tested once on the STAAR test. A video explaining the problem can be found below. If you'd rather take a quiz over this question, click here. The video below is linked to the question in the quiz as an answer explanation after the quiz is submitted.


To view all the posts in this 6th grade TEKS review series, click here.

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