The space within two lines or three or more planes diverging from a common point, or within two planes diverging from a common line.
Starts with
B
The side of a triangle which is perpendicular to the altitude.
Starts with
C
To determine by reasoning, common sense, or practical experience; estimate; evaluate; gauge.
Contains
D
One of the surfaces forming the outside of or bounding a thing, or one of the lines bounding a geometric figure.
Contains
E
Any particular extent of space or surface
Starts with
F
A set form of words, as for stating or declaring something definitely or authoritatively, for indicating procedure to be followed, or for prescribed use on some ceremonial occasion.
Contains
G
Side that along with another forms the right angle of a right triangle.
Starts with
H
The side of a right triangle opposite the right angle.
Contains
I
A closed plane figure having three sides and three angles.
Starts with
J
An intersection of piping or wiring; an interconnect.
Starts with
K
A quadrilateral with two pairs of adjacent sides that are congruent. Note that the diagonals of a kite are perpendicular.
Starts with
L
The longest extent of anything as measured from end to end
Starts with
M
An expert or specialist in mathematics.
Starts with
N
The numbers used for counting. That is, the numbers 1, 2, 3, 4, etc.
Contains
O
Evidence sufficient to establish a thing as true, or to produce belief in its truth.
Starts with
P
Famous mathematician of ancient Greece.
Contains
Q
An expression or a proposition, often algebraic, asserting the equality of two quantities.
Starts with
R
A 90° angle.
Starts with
S
A rectangle having all four sides of equal length.
Starts with
T
A theoretical proposition, statement, or formula embodying something to be proved from other propositions or formulas.
Contains
U
An angle that has measure less than 90°.
Starts with
V
A corner point of a geometric figure. For a polygon, vertices are where adjacent sides meet. For an angle, the vertex is where the two rays making up the angle meet.
Starts with
W
The numbers 0, 1, 2, 3, 4, 5, etc.
Contains
X
A line of symmetry for a graph. The two sides of a graph on either side of the axis of symmetry look like mirror images of each other.
Contains
Y
The study of triangles, with emphasis on calculations involving the lengths of sides and the measures of angles. Trigonometry is also known as trig.
