Geometry Benchmark Review

Which term is defined as two intersecting lines that form four right angles in a plane?

• skew lines

• straight lines

• parallel lines

• perpendicular lines

Triangle MNO is transformed to produce triangle PQR.

Select ALL of the transformations that would guarantee triangles MNO and PQR are congruent.

• a dilation, then a translation

• a reflection, then a dilation

• a reflection, then a rotation

• a rotation, then a translation

• a translation, then a reflection

What would be the reason for statement 3?

• Corresponding angles are congruent

• Alternate exterior angles are congruent

• Alternate interior angles are congruent

• Reflexive property

What is the length of y in this picture?

• 45

• 5√2

• 90

• 5

For each pair of figures, decide whether you can take figure A to figure B by translation, a rotation, or a reflection.

• translation

• rotation

• reflection

∠A = ≅

• ∠M

• ∠N

• ∠L

Name the construction.

• Angle bisector

• Perpendicular line to a point not on a line

• Angle median

• Perpendicular bisector of a line segment

Line k has a slope of -5. Line j is perpendicular to line k and passes through the point (5, 9). What is the equation for line j?

• y = -5x + 8

• y = -5x + 9

• y = 1/5x + 8

• y = 1/5x + 14

Identify the smallest angle of rotation that maps the image to itself.

• 60°

• 120°

• 180°

• 90°

If ∆PIG ≅ ∆COW, WO≅?

• GI

• PI

• PG

• IG