Chris Giovanello, LBUSD Math Curriculum Office, 2004 Beat the Computer! Geometry Vocabulary for Unit 3.

Chris Giovanello, LBUSD Math Curriculum Office, 2004

Beat the Computer!

Geometry Vocabulary for Unit 3


Directions:•A slide will appear with a term

•Say the definition aloud before the computer can answer (5 sec.)

•You will hear a sound when the slide changes


transversalt

l

m1 2

7

45

8

36


transversal:

a line that intersects two coplanar lines at two distinct points

t

l

m1 2

7

45

8

36

Line t is the transversal for lines l and m.


alternate interior angles

t

l

m1 2

7

45

8

36


alternate interior angles:

nonadjacent interior angles that lie on opposite sides of

the transversal

t

l

m1 2

7

45

8

36

Alternate interior ’s:

3 & 5

4 & 6


same-side interior angles

t

l

m1 2

7

45

8

36


same-side interior angles:

interior angles that lie on the same side of the

transversalt

l

m1 2

7

45

8

36

Same-side interior ’s:

3 & 6

4 & 5


corresponding angles

t

l

m1 2

7

45

8

36


corresponding angles:

angles that lie on the same side of the transversal and

are in corresponding positions

t

l

m1 2

7

45

8

36

Corresponding ’s:

1 & 5

2 & 6

3 & 7

4 & 8


two-column proof


two-column proof:

a convincing argument that uses deductive

reasoning in which the statements and

reasons are aligned in columns


flow proof


flow proof:

a convincing argument that uses deductive reasoning in which arrows show the

logical connections between the statements


equiangular triangle


equiangular triangle:

a triangle that has three congruent angles


acute triangle


acute triangle:

a triangle that has three acute angles


right triangle


right triangle:

a triangle that has one right angle


obtuse triangle


obtuse triangle:

a triangle that has one obtuse angle


equilateral triangle


equilateral triangle:

a triangle that has three congruent

sides


isosceles triangle


isosceles triangle:

a triangle that has at least two sides

congruent


scalene triangle


scalene triangle:

a triangle that has no sides congruent


exterior angle of a polygon


exterior angle of a polygon:

an angle formed by a side and an extension

of an adjacent sideExterior angle


remote interior angles of a

triangle


remote interior angles of a triangle:

the two nonadjacent interior angles

corresponding to each exterior angleExterior

angle

Remote interior angles


polygon


polygon:

a closed plane figure with at least three sides

that are segments

Yes! No!No!


convex polygon


convex polygon:

a polygon that has no diagonal with points outside the polygon


concave polygon


concave polygon:

a polygon that has at least one diagonal with

points outside the polygon


quadrilateral


quadrilateral:

a polygon with four sides


pentagon


pentagon:

a polygon with five sides


hexagon


hexagon:

a polygon with six sides


heptagon


heptagon:

a polygon with seven sides


octagon


octagon:

a polygon with eight sides


nonagon


nonagon:

a polygon with nine sides


decagon


decagon:

a polygon with ten sides


dodecagon


dodecagon:

a polygon with twelve sides


equilateral polygon


equilateral polygon:

a polygon with all sides congruent


equiangular polygon


equiangular polygon:

a polygon with all angles congruent


regular polygon


regular polygon:

a polygon that is both equilateral and

equiangular


slope-intercept form


slope-intercept form:

a linear equation in the form of

y = mx + b


standard form


standard form:


Ax + By = C


point-slope form


point-slope form:


y - y1 = m(x - x1)

Chris Giovanello, LBUSD Math Curriculum Office, 2004 Beat the Computer! Geometry Vocabulary for Unit 3.

Documents

lbusd math curriculum

chris giovanello

slide changes slide

right triangle slide

obtuse triangle slide

acute triangle slide

pentagon slide

quadrilateral slide