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Illustrative Math
Grade 8
Let’s decide whether shapes are the same.
Illustrative Math Unit 8.1, Lesson 11 (printable worksheets)
The following diagrams describe how two figures are congruent if one can be lined up exactly with the other by a sequence of rigid transformations.
A person’s hands are mirror images of each other. In the diagram, a left hand is labeled. Shade all of the right hands.
For each pair of shapes, decide whether or not they are the same.
In square ABCD, points E, F, G, and H are midpoints of their respective sides. What fraction of square ABCD is shaded? Explain your reasoning.
The Open Up Resources math curriculum is free to download from the Open Up Resources website and is also available from Illustrative Mathematics.
Try out our new and fun Fraction Concoction Game.
Add and subtract fractions to make exciting fraction concoctions following a recipe. There are four levels of difficulty: Easy, medium, hard and insane. Practice the basics of fraction addition and subtraction or challenge yourself with the insane level.
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