Rectangle
A rectangle is a type of polygon that has four sides and four angles. The opposite sides of a rectangle are equal in length and the adjacent sides are perpendicular to each other.
The formula to calculate the perimeter of a rectangle is: P = 2 * (length + width), where P is the perimeter, length is the length of the rectangle, and width is the width of the rectangle.
The formula to calculate the area of a rectangle is: A = length * width, where A is the area, length is the length of the rectangle, and width is the width of the rectangle.
Rectangles are commonly found in everyday objects such as paper, doors, windows, and computer screens.
[Rectangle] Related Worksheets and Study Guides:
.◂Math Worksheets and Study Guides Second Grade. Fractions Greater Than or Less Than 1/2
Study Guide
Fractions Greater Than or Less Than 1/2 
Worksheet/Answer key
Fractions Greater Than or Less Than 1/2 Worksheet/Answer key
Fractions Greater Than or Less Than 1/2 Worksheet/Answer key
Fractions Greater Than or Less Than 1/2 Worksheet/Answer key
Fractions and Decimals Worksheet/Answer key
Fractions and Decimals Vocabulary/Answer key
Fractions Greater Than or Less Than 1/2
Worksheet/Answer keyWorksheet/Answer keyWorksheet/Answer keyWorksheet/Answer keyWorksheet/Answer keyVocabulary/Answer keyCreate And Print more Fractions worksheets with Comparing Fractions, Equivalent Fractions, and Simplifying Fractions
The resources above cover the following skills:
Number and Operations (NCTM)
Understand numbers, ways of representing numbers, relationships among numbers, and number systems.
Understand and represent commonly used fractions, such as 1/4, 1/3, and 1/2.