Length of the Diagonal of a Rectangle Worksheets

Whiz through our free worksheets on finding the length of the diagonal of a rectangle! These printable worksheets present a series of rectangles, marked with their lengths and widths. Students need to calculate the length of the diagonal drawn across each rectangle using the dimensions given. This exercise is one of the many instances where the Pythagorean theorem is applied. Recognize the two right triangles formed when a diagonal is drawn on a rectangle, consider the diagonal as the hypotenuse, and apply the theorem. Giving it as a formula, we have d = √(l2 + w2), where d is the diagonal length and l and w are the length and width of the rectangle respectively.

We recommend these pdf resources for grade 7, grade 8, and high school students.

CCSS: 8.G

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Finding the Length of the Diagonal of a Rectangle
Select the Units of Measurement:
Worksheet 1
Worksheet 2
Worksheet 3