This article has been viewed 618,387 times. This article has been fact-checked, ensuring the accuracy of any cited facts and confirming the authority of its sources. There are 7 references cited in this article, which can be found at the bottom of the page. Additionally, David has worked as an instructor for online videos for textbook companies such as Larson Texts, Big Ideas Learning, and Big Ideas Math. After attaining a perfect 800 math score and a 690 English score on the SAT, David was awarded the Dickinson Scholarship from the University of Miami, where he graduated with a Bachelor’s degree in Business Administration. With over 10 years of teaching experience, David works with students of all ages and grades in various subjects, as well as college admissions counseling and test preparation for the SAT, ACT, ISEE, and more. The area of a rectangle is a space restricted by its sides or, in other words, within the perimeter of a rectangle. David Jia is an Academic Tutor and the Founder of LA Math Tutoring, a private tutoring company based in Los Angeles, California. If all sides of the rectangle have equal lengths, we call it a square. We’ll start with the area and perimeter of rectangles. However, counting the squares is not a very efficient way to determine the area. ![]() ![]() That means that the area of the rectangle, or the space that covers the rectangle, is 48 square units. ![]() Area and perimeter help us measure the size of 2D shapes. If you took the time to count all the squares, you should see that there are 48. This article was co-authored by David Jia. Test your understanding of Area and perimeter with these (num)s questions.
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