Chris Giovanello, LBUSD Math Curriculum Office, 2004 Beat the Computer! Geometry Vocabulary for Unit 3.
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Chris Giovanello, LBUSD Math Curriculum Office, 2004
Beat the Computer!
Geometry Vocabulary for Unit 3
Chris Giovanello, LBUSD Math Curriculum Office, 2004
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
Chris Giovanello, LBUSD Math Curriculum Office, 2004
transversalt
l
m1 2
7
45
8
36
Chris Giovanello, LBUSD Math Curriculum Office, 2004
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.
Chris Giovanello, LBUSD Math Curriculum Office, 2004
alternate interior angles
t
l
m1 2
7
45
8
36
Chris Giovanello, LBUSD Math Curriculum Office, 2004
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
Chris Giovanello, LBUSD Math Curriculum Office, 2004
same-side interior angles
t
l
m1 2
7
45
8
36
Chris Giovanello, LBUSD Math Curriculum Office, 2004
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
Chris Giovanello, LBUSD Math Curriculum Office, 2004
corresponding angles
t
l
m1 2
7
45
8
36
Chris Giovanello, LBUSD Math Curriculum Office, 2004
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
Chris Giovanello, LBUSD Math Curriculum Office, 2004
two-column proof
Chris Giovanello, LBUSD Math Curriculum Office, 2004
two-column proof:
a convincing argument that uses deductive
reasoning in which the statements and
reasons are aligned in columns
Chris Giovanello, LBUSD Math Curriculum Office, 2004
flow proof
Chris Giovanello, LBUSD Math Curriculum Office, 2004
flow proof:
a convincing argument that uses deductive reasoning in which arrows show the
logical connections between the statements
Chris Giovanello, LBUSD Math Curriculum Office, 2004
equiangular triangle
Chris Giovanello, LBUSD Math Curriculum Office, 2004
equiangular triangle:
a triangle that has three congruent angles
Chris Giovanello, LBUSD Math Curriculum Office, 2004
acute triangle
Chris Giovanello, LBUSD Math Curriculum Office, 2004
acute triangle:
a triangle that has three acute angles
Chris Giovanello, LBUSD Math Curriculum Office, 2004
right triangle
Chris Giovanello, LBUSD Math Curriculum Office, 2004
right triangle:
a triangle that has one right angle
Chris Giovanello, LBUSD Math Curriculum Office, 2004
obtuse triangle
Chris Giovanello, LBUSD Math Curriculum Office, 2004
obtuse triangle:
a triangle that has one obtuse angle
Chris Giovanello, LBUSD Math Curriculum Office, 2004
equilateral triangle
Chris Giovanello, LBUSD Math Curriculum Office, 2004
equilateral triangle:
a triangle that has three congruent
sides
Chris Giovanello, LBUSD Math Curriculum Office, 2004
isosceles triangle
Chris Giovanello, LBUSD Math Curriculum Office, 2004
isosceles triangle:
a triangle that has at least two sides
congruent
Chris Giovanello, LBUSD Math Curriculum Office, 2004
scalene triangle
Chris Giovanello, LBUSD Math Curriculum Office, 2004
scalene triangle:
a triangle that has no sides congruent
Chris Giovanello, LBUSD Math Curriculum Office, 2004
exterior angle of a polygon
Chris Giovanello, LBUSD Math Curriculum Office, 2004
exterior angle of a polygon:
an angle formed by a side and an extension
of an adjacent sideExterior angle
Chris Giovanello, LBUSD Math Curriculum Office, 2004
remote interior angles of a
triangle
Chris Giovanello, LBUSD Math Curriculum Office, 2004
remote interior angles of a triangle:
the two nonadjacent interior angles
corresponding to each exterior angleExterior
angle
Remote interior angles
Chris Giovanello, LBUSD Math Curriculum Office, 2004
polygon
Chris Giovanello, LBUSD Math Curriculum Office, 2004
polygon:
a closed plane figure with at least three sides
that are segments
Yes! No!No!
Chris Giovanello, LBUSD Math Curriculum Office, 2004
convex polygon
Chris Giovanello, LBUSD Math Curriculum Office, 2004
convex polygon:
a polygon that has no diagonal with points outside the polygon
Chris Giovanello, LBUSD Math Curriculum Office, 2004
concave polygon
Chris Giovanello, LBUSD Math Curriculum Office, 2004
concave polygon:
a polygon that has at least one diagonal with
points outside the polygon
Chris Giovanello, LBUSD Math Curriculum Office, 2004
quadrilateral
Chris Giovanello, LBUSD Math Curriculum Office, 2004
quadrilateral:
a polygon with four sides
Chris Giovanello, LBUSD Math Curriculum Office, 2004
pentagon
Chris Giovanello, LBUSD Math Curriculum Office, 2004
pentagon:
a polygon with five sides
Chris Giovanello, LBUSD Math Curriculum Office, 2004
hexagon
Chris Giovanello, LBUSD Math Curriculum Office, 2004
hexagon:
a polygon with six sides
Chris Giovanello, LBUSD Math Curriculum Office, 2004
heptagon
Chris Giovanello, LBUSD Math Curriculum Office, 2004
heptagon:
a polygon with seven sides
Chris Giovanello, LBUSD Math Curriculum Office, 2004
octagon
Chris Giovanello, LBUSD Math Curriculum Office, 2004
octagon:
a polygon with eight sides
Chris Giovanello, LBUSD Math Curriculum Office, 2004
nonagon
Chris Giovanello, LBUSD Math Curriculum Office, 2004
nonagon:
a polygon with nine sides
Chris Giovanello, LBUSD Math Curriculum Office, 2004
decagon
Chris Giovanello, LBUSD Math Curriculum Office, 2004
decagon:
a polygon with ten sides
Chris Giovanello, LBUSD Math Curriculum Office, 2004
dodecagon
Chris Giovanello, LBUSD Math Curriculum Office, 2004
dodecagon:
a polygon with twelve sides
Chris Giovanello, LBUSD Math Curriculum Office, 2004
equilateral polygon
Chris Giovanello, LBUSD Math Curriculum Office, 2004
equilateral polygon:
a polygon with all sides congruent
Chris Giovanello, LBUSD Math Curriculum Office, 2004
equiangular polygon
Chris Giovanello, LBUSD Math Curriculum Office, 2004
equiangular polygon:
a polygon with all angles congruent
Chris Giovanello, LBUSD Math Curriculum Office, 2004
regular polygon
Chris Giovanello, LBUSD Math Curriculum Office, 2004
regular polygon:
a polygon that is both equilateral and
equiangular
Chris Giovanello, LBUSD Math Curriculum Office, 2004
slope-intercept form
Chris Giovanello, LBUSD Math Curriculum Office, 2004
slope-intercept form:
a linear equation in the form of
y = mx + b
Chris Giovanello, LBUSD Math Curriculum Office, 2004
standard form
Chris Giovanello, LBUSD Math Curriculum Office, 2004
standard form:
a linear equation in the form of
Ax + By = C
Chris Giovanello, LBUSD Math Curriculum Office, 2004
point-slope form
Chris Giovanello, LBUSD Math Curriculum Office, 2004
point-slope form:
a linear equation in the form of
y - y1 = m(x - x1)
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