Unit Test — Cumulative exam Answers

Which quadrilateral will always have 4-fold reflectional symmetry?

Triangle ABC is isosceles.

Rectangle ABCD was dilated to create rectangle A'B'C'D.

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?

Triangle ABC has the angle measures shown.

Complete the paragraph proof.Given: M is the midpoint of Prove: ΔPKB is isosceles

Which shows the pre-image of triangle X'Y'Z' before the figure was rotated 90° about the origin?

Horizontal and parallel lines M Q and U R are intersected by 2 diagonal lines N S and P T to form triangle E G F. Line N S intersects line M Q at point E and intersects line U R at point F. Line P T intersects line M Q at point E and intersects line U R at point G.

Triangles R S T and X Y T are congruent. Triangle R S T is reflected across a line and then rotated at point T to form triangle X Y T.

Triangle J K L is shown. Angle J K L is a right angle. An altitude is drawn from point K to point M on side L J to form a right angle. The length of K M is 6 and the length of M J is 3.

Point E is drawn on the graph so that line EF is parallel to line CD.

In the diagram, the ratios of two pairs of corresponding sides are equal.

Angle KLM and angle MLN are a linear pair.

Triangle ABC was reflected over line m, then dilated by a scale factor between 0 and 1. Which diagram illustrates these transformations?

A line segment has endpoints at (3, 2) and (2, –3). Which reflection will produce an image with endpoints at (3, –2) and (2, 3)?

A right angle intersects a line at point M.

Triangle DEF is an isosceles, so DEF DFE.