STAAR Review 3

Quadrilateral PQRS is dilated with the origin as the center of the dilation to create quadrilateral P'Q'R'S' . The coordinates of each vertex are integers.

Which statement is true?

• Quadrilateral P'Q'R'S'  is congruent to quadrilateral PQRS.

• Quadrilateral P'Q'R'S' 

  is similar to quadrilateral PQRS.

Tags

TEKS.MATH.8.3B

Tags

TEKS.MATH.8.3C

Pentagon NQRTW was dilated with the origin as the center to create pentagon N'Q'R'T'W'.  Vertex R' is located at (6, 2).

Which rule best describes the dilation?

Tags

TEKS.MATH.8.3C

Trapezoid KLMN is reflected over the x-axis to form trapezoid WXYZ. Which statement is true?

• Trapezoid KLMN is reflected over the x-axis to form trapezoid WXYZ. Which statement is true?

• The angle measures of trapezoid KLMN are less than the corresponding angle measures of trapezoid WXYZ.

• The sum of the angle measures of trapezoid KLMN is twice the sum of the angle measures of trapezoid WXYZ. 

• The side lengths of trapezoid KLMN are congruent to the corresponding side lengths of trapezoid WXYZ.

Tags

10a

Triangle FGH is shown on the coordinate plane.

Triangle FGH is rotated 90° clockwise to create triangle F'G'H'.

Choose the correct answer from each drop-down menu to complete the statements.

Triangle F'G'H' is​ (a)   to triangle FGH.

The orientation of the vertices of triangle F'G'H'​ (b)   the same as the orientation of the vertices of triangle FGH.

• congruent
• not similar
• similar but not congruent
• is
• is not

Tags

TEKS.MATH.8.10A

Place each scenario in the correct category.

Groups:

(a) Preserves Congruence

,

(b) Does Not Preserve Congruence

• A dilation by a scale factor of 1.

• A dilation by a scale factor of 0.5 with the origin as the center of dilation

• A translation 15 units up.

• A rotation of 180° counterclockwise with the origin as the center of rotation

• A reflection across the y-axis

Tags

TEKS.MATH.8.10B

Square ABCD is translated 3 units to the right on a coordinate grid to create square A'B'C'D'. Which rule describes this translation?

Tags

TEKS.MATH.8.10C

Tags

TEKS.MATH.8.10C

A polygon is rotated 270° clockwise about the origin to create a new polygon. Which rule describes this transformation?

Tags

TEKS.MATH.8.10C

Triangle 1 is dilated by a scale factor of 4.1 using the origin as the center of dilation to create Triangle 2. Which statement about the area and perimeter of Triangle 2 is true?

• The perimeter is 4.1 times the perimeter of Triangle 1, and the area is 4.1 times the area of Triangle 1.

• The perimeter is 8.2 times the perimeter of Triangle 1, and the area is 8.2 times the area of Triangle 1.

• The perimeter is 4.1 times the perimeter of Triangle 1, and the area is 16.81 times the area of Triangle 1.

• The perimeter is 16.4 times the perimeter of Triangle 1, and the area is 16.81 times the area of Triangle 1.

Tags

TEKS.MATH.8.10D