Test 2 Geometry

If two distinct lines do not intersect, then they are parallel.

false

If two lines are parallel, then they lie in the same plane.

true

If two lines intersect, then they lie in the same plane.

true

If a line is perpendicular to a plane, then it is perpendicular to all lines in that plane.

false

If three lines are concurrent, then they are also coplanar.

false

If two planes intersect, then the intersection is either a point or a line.

false

quadrilateral

2

pentagon

5

hexagon

9

heptagon

14

octagon

20

n-gon

n(n - 3)/2

a quadrilateral with opposite sides parallel:

parallelogram, rhombus, a rectangle that is not a square, square

a quadrilateral with four right angles:

a rectangle that is not a square, square

a quadrilateral with all sides congruent:

rhombus, square

a quadrilateral in which the diagonals bisect each other:

parallelogram, rhombus, a rectangle that is not a square, square

a quadrilateral in which the diagonals are congruent:

a rectangle that is not a square, square, isosceles trapezoid

a quadrilateral in which adjacent angles are congruent:

a rectangle that is not a square, square

a quadrilateral in which opposite angles are congruent:

parallelogram, rhombus, a rectangle that is not a square, square

a quadrilateral in which no sides are parallel:

a kite that is not a rhombus

a quadrilateral with four congruent sides and two distinct pairs of congruent angles:

rhombus

a quadrilateral with four congruent angles and two distinct pairs of congruent sides:

a rectangle that is not a square

First clue: It has exactly 6 faces. What might it be? (Select all that apply.)

pentagonal pyramid, cube, rectangular prism

Second clue: None of the faces are parallel. What might it be? (Select all that apply.)

pentagonal pyramid

two parallel line segments

EH and AD

two line segments that do not lie in the same plane

EH and CD

two intersecting line segments

AD and DH

Three concurrent line segments that do it lie in a single plane

BF, GF, & EF

two slew line segments

AE and CD

a pair of supplementary angles

<AEH and <DAE

a pair of perpendicular line segments

AD and DH

determine where it’s a polygon or not

concave polygon

Determine whether it’s a polygon or not

Not a polygon

Determine whether it’s a polygon or not

Convex polygon

Determine whether it’s a polygon or not

Not a polygon

Determine whether it’s a polygon or not

Concave polygon

Vertices, edges, faces

5, 8, 5

Vertices, edges, faces

6, 9, 5

Vertices, edges, faces

10, 15, 7

Name the figure below

Octagonal prism

Name the figure below

Triangular prism

Name the figure below

Rectangular prism

Name the figure below

Cylinder

Label as concave or convex

concave

Label as concave or convex

Convex

Name two complementary angles

CBD and EBD

Name two supplementary angles

ABF and FBE

Name two verticle angles

CBD and FBG

Name two adjacent angles

ABC and ABG