TNREADY Review_8.G.A.1-2

Line segment 𝑿𝒀 is reflected across the 𝒙-axis to form line segment 𝑯𝑱.

If line segment 𝑿𝒀 is 𝟓 units long, what is the length of line segment 𝑯𝑱?

• 5 units

• 7 units

• 8 units

• 10 units

Tags

8.G.A.1a

Triangle ABC is reflected over the x-axis to create triangle DEF.

Which statements about triangles ABC and DEF are true?

Select all that apply.

• The perimeter of triangle ABC is equal to the perimeter of triangle DEF.

Tags

8.G.A.1a

Consider the side lengths of triangle 𝑴𝑵𝑷.

If triangle 𝑴𝑵𝑷 is graphed on the coordinate plane and rotated 𝟐𝟕𝟎° clockwise about the origin to form triangle 𝑴′𝑵′𝑷′, which statement is true?

• The length of segment 𝑀′𝑁′ is equal to 13.7 inches because clockwise rotations increase segment length.

• The length of segment 𝑀′𝑁′ is less than 8.5 inches because clockwise rotations decrease segment length.

• The length of segment 𝑁′𝑃′ is equal to 11.2 inches because clockwise rotations preserve segment length.

• The length of segment 𝑁′𝑃′ is greater than 11.2 inches because clockwise rotations double segment length.

Tags

8.G.A.1a

Triangle 𝑴𝑵𝑷 is translated left to form triangle 𝑴′𝑵′𝑷′.

Which statement is true?

• Translations decrease angle measures, so the measure of angle 𝑀′ is 23°.

• Translations increase angle measures, so the measure of angle 𝑀′ is 92°.

• Translations preserve angle measures, so the measure of angle 𝑀′ is 46°.

• Translations preserve angle measures, so the measure of angle 𝑀′ is 52°.888878

Tags

8.G.A.1b

Consider triangles 𝑱𝑲𝑳 and 𝑺𝑻𝑼, where angle 𝑱 measures 𝟕𝟔°, angle 𝑲 measures 𝟐𝟒°, and angle 𝑼 measures 𝟖𝟎°.

If triangle 𝑱𝑲𝑳 is rotated 𝟏𝟖𝟎° clockwise about the origin to create triangle 𝑺𝑻𝑼, what is the measure of angle 𝑺?

• 24°

• 76°

• 80°

• 180°

Tags

8.G.A.1b

Consider polygon 𝑱𝑲𝑳𝑴, where no angles are equal in measure. Polygon 𝑱𝑲𝑳𝑴 is rotated 𝟗𝟎° counterclockwise about the origin to form polygon 𝑸𝑹𝑺𝑻.

Which angle is congruent to ∠𝑳?

• ∠𝑄

• ∠𝑅

• ∠𝑆

• ∠𝑇

Tags

8.G.A.1b

Octagon 𝑴𝑵𝑷𝑸𝑹𝑺𝑻𝑼 is reflected across the 𝒙-axis to form octagon 𝑴′𝑵′𝑷′𝑸′𝑹′𝑺′𝑻′𝑼′.

Which segment is parallel to segment 𝑷′𝑸′?

• segment 𝑀′𝑁′

• segment 𝑁′𝑃′

• segment 𝑆′𝑅′

• segment 𝑈′𝑇′

Tags

8.G.A.1c

Parallel lines 𝒈 and 𝒉 are graphed on the coordinate plane and rotated 𝟏𝟖𝟎° clockwise about the origin to form lines 𝒈′ and 𝒉′.

Which statement is true?

• Lines 𝑔′ and ℎ′ are parallel.

• Lines 𝑔′ and ℎ′ are perpendicular.

• The distance between lines 𝑔′ and ℎ′ is greater than the distance between lines 𝑔 and ℎ.

• The distance between lines 𝑔′ and ℎ′ is less than the distance between lines 𝑔 and ℎ.

Tags

8.G.A.1c

• The length of segment 𝑆𝑇 will be double the length of segment 𝐽𝐾.

• The length of segment 𝑆𝑇 will be equal to the length of segment 𝐽𝐾.

• The length of segment 𝑆𝑇 will be greater than the length of segment 𝐽𝐾.

• The length of segment 𝑆𝑇 will be half the length of segment 𝐽𝐾.8

Tags

8.G.A.1d

Consider the blueprint a contractor creates of a sidewalk, where 𝟏 unit represents 𝟏 foot. The contractor edits the blueprint by transforming segment 𝑳𝑴 on the coordinate plane.

If the contractor dilates segment 𝑳𝑴 by a scale factor of 𝟏.𝟓 about about the origin, creating segment 𝑳′𝑴′, what are the coordinates of the endpoints of segment 𝑳′𝑴′?

• 𝐿′(1.5,2) and 𝑀′(12,5)

• 𝐿′(1.5,3) and 𝑀′(12,7.5)

• 𝐿′(1,3) and 𝑀′(8,7.5)

• 𝐿′(2.5,3.5) and 𝑀′(9.5,6.5)

Tags

8.G.A.1d