Grade 8 | Unit 1: Rigid Transformations and Congruence | Check Your Readiness (B)

Select all the triangles that can be rotated to match up with Triangle 1.

• Triangle A

• Triangle B

• Triangle C

• Triangle D

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8.G.A.1

Identify all pairs of lines which appear to be perpendicular in the diagram.

• (s) and (p)

• (t) and (p)

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4.G.A.1

Identify all pairs of lines which appear to be parallel in the diagram.

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4.G.A.1

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5.G.A.1

6.G.A.3

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5.G.A.1

6.G.A.3

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7.G.B.5

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7.G.B.5

For each set of measurements, decide whether or not it is possible to draw a triangle with those measurements. If it is possible, draw the triangle. Side lengths 3 cm, 5 cm, and 9 cm. Side lengths 3 cm, 5 cm, and 6 cm. Angles 90 degrees, 45 degrees, and 75 degrees. Angles 90 degrees, 30 degrees, and 60 degrees.

• No.

• Yes. Answers vary.

• No.

• Yes. Answers vary.

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7.G.A.2

Find the area of each parallelogram.

• 
• 

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6.G.A.1

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8.G.A.2