Cumulative Exam — Cumulative exam Answers

Triangle RST has vertices R(2, 0), S(4, 0), and T(1, –3). The image of triangle RST after a rotation has verticesR'(0, –2), S'(0, –4), and T'(–3, –1). Which rule describes the transformation?

The rule is applied to ΔBCD to produce ΔB"C"D". Point B" of the final image is at (–4, 1).

3 lines are shown. A line with points M, H, K intersects with a line with points J, H, L at point H. Another line extends from point H to point N in between angle K, H, J. Angle M H L is (3 x + 20) degrees, angle K H N is (x + 25) degrees, and angle J H N is (x + 20) degrees.

Which quadrilateral will always have 4-fold reflectional symmetry?

Angle B measures 60°. What is the measure of the angle that is complementary to angle B?

Which statements about the figure must be true? Select three options.

Which figure shows a line of reflectional symmetry for the letter T?

Planes X and Y and points J, K, L, M, and N are shown.

The last line of a proof represents

Which statements are true about triangle ABC and its translated image, A'B'C'? Select two options.

Ray UW is the angle bisector of VUT.

On a coordinate plane, 2 triangles are shown. The first triangle has points A (negative 2, 1), C (negative 4, 1), and B (negative 3, 4). The second triangle has points A prime (1, negative 2), B prime (4, negative 3), and C prime (1, negative 4).

What is the midpoint of ?

Triangle ABC was transformed using the rule (x, y) → (–y, x). The vertices of the triangles are shown.A (–1, 1)B (1, 1)C (1, 4) A' (–1, –1)B' (–1, 1)C' (–4, 1)

Using the segment addition postulate, which is true?

Which statement is true about the given information?

The image of ΔABC after a reflection across is ΔA'B'C'.

A composition of transformations maps ΔXYZ to ΔX"Y"Z".

Raj correctly determined that ray LH is the bisector of GLI.

Trapezoid G H J K is rotated about G 90 degrees counterclockwise to form trapezoid G prime H prime J prime K prime. Trapezoid G prime H prime J prime K prime is reflected across the line of reflection m to form trapezoid G double-prime H double-prime J double-prime K double-prime.