STAAR Review Part 2

Quadrilateral PQRT and quadrilateral KLMN are similar. Which proportion must be true? (30)

Triangle PQR is dilated with the origin as the center of dilation to create triangle P'Q'R'. What is the rule that represents the dilation from triangle PQR to triangle P'Q'R'? (44)

• 2x, 2y

• 3x, 3y

• 6x, 6y

• 2y, 2x

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? (28)

• (x, y) → (1/3x, 1/3y)

• (x, y) → (3x, 3y)

• (x, y) → (3/2x, 3/2y)

• (x, y) → (2/3x, 2/3y)

The figures shown each have a set of parallel lines intersected by a transversal. Based on the figures, what are the measures x, y, and z in degrees? (24)

• x = 120°, y = 60°, z = 60°

• x = 110°, y = 35°, z = 35°

• x = 90°, y = 45°, z = 45°

• x = 100°, y = 40°, z = 40°

Which transformation does NOT preserve congruence? (57)

• A reflection across the x-axis

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

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

• A translation 5 units to the right and 11 units down

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? (63)

• (x, y) → (x, y − 3)

• (x, y) → (x, y + 3)

• (x, y) → (x + 3, y)

• (x, y) → (x − 3, y)

Triangle RST is rotated 270° counterclockwise about the origin of a coordinate plane to create triangle R'S'T'. Which rule describes this transformation? (21)

• (x, y) → (x, −y)

• (x, y) → (−x, y)

• (x, y) → (−y, −x)

• (x, y) → (y, −x)

The diagram represents a side view of a roof in the shape of a right triangle. Which measurement is closest to the length of the roof in feet? (65)

• 5.1 ft

• 16.1 ft

• 26.0 ft

• 19.7 ft

Determine whether the triangle with the set of side lengths form a right triangle.

Select all answers that apply. (46)

• 24, 45, 51 centimeters

• 3. 2, 4, 6 centimeters

• 6, 8, 9 centimeters

• 3. 10, 24, 26 centimeters

Two points are shown on a coordinate grid. Which measurement is closest to the distance between points K and L? (32)

• 7 units

• 5 units

• 10 units

• 20 units