It is important to have an intuitive understanding of how these two properties varies when the shape changes. For example, what happens to the Area and Perimeter when you cut off a piece from a 2D Shape?
Area of a Triangle is usually taught in 5th grade. While the basic formula (1/2 base x height) and its proof are not hard to understand, students often have trouble identifying what or where the “base” and “height” are. Specifically, they may have difficulty finding suitable line segments (with start and end points) to measure …
Have you seen the perimeter question that has been widely shared on social media recently? Here is one of our own from the Singapore math archive! Do you know the answer?
