![]() This sheet features eight different 2D shapes. Not all 2D shapes follow this rule, but many do: triangle 3 sides. See how good your students are at recognising 2D Maths shapes and their names with this Name the 2D Shape Write Up Worksheet. This article has been viewed 831,992 times. The number of sides that a shape has can help you decide what the name of the shape is. 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. David Jia is an Academic Tutor and the Founder of LA Math Tutoring, a private tutoring company based in Los Angeles, California. An irregular shape has different length sides and/or interior angles. ![]() A regular shape has all sides the same length and all interior angles the same size. A heptagon is a 7-sided polygon with 7 angles and 7 sides. However, it is also acceptable to refer to the shape as a 22-agon. A polygon is a 2D shape with straight sides. The name for a 22-sided shape is a icosidigon. When looking at a prism, it looks as if the base was stretched out and the. This article was co-authored by David Jia. In primary school, children will learn about the following 2d shapes: polygons, regular and irregular shapes. A prism is a three-dimensional shape with two identical polygon bases connected by parallelogram sides.
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