Grade 8 | Unit 2: Dilations, Similarity, and Introducing Slope | End-of-Unit Assessment (A)

Select all the true statements.

• Dilations increase the measure of angles.

• Dilations always increase the length of line segments.

• Dilations of a triangle are similar to the original triangle.

• Dilations of an angle are congruent to the original angle.

• Dilations take perpendicular lines to perpendicular lines.

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8.G.A

Which pair of triangles must be similar?

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8.G.A.5

• Line A: rise = 10, run = 4

• Line B: rise = 4, run = 2

• Line C: rise = 2, run = 5

• Line D: rise = 1, run = 2

• Line E: rise = 2, run = 1

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8.EE.B.6

Which of Polygons B, C, D, E, and F are similar to Polygon A? Choose one polygon that is similar to Polygon A, and describe a sequence of transformations that take Polygon A to the selected polygon.

• Polygon B

• Polygon C

• Polygon D

• Polygon E

• Polygon F

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8.G.A.4

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8.G.A.4

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8.G.A.4

Find the slope of the line. Explain or show your reasoning.

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8.EE.B.6

Write an equation for the line.

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8.EE.B.6

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8.EE.B.6

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8.G.A.4