Measure the lengths and diagonals of three squares with a ruler. Look over your measurements and try to come up with a rule of thumb for estimating the length of a diagonal if you know the length of a side.

Concepts

length, measurement, squares

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Additional Tags

diagonals, length of diagonals, using a ruler, annenberg foundation, annenberg learner, annenberg media, diagonal

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Classroom Considerations

• Knovation Readability Score: 2 (1 low difficulty, 5 high difficulty)

Common Core

2.MD.A.2 2.MD.A.3