Therefore

If x then y

is congruent to

is not congruent to

is similar to

Angle with vertex A

refers to angles(more than one)

Measure of angle A in degree(s)

n

is perpendicular to

is not perpendicular to

|| is parallel to

is not parallel to

∟ right angle sign

∆ABC Triangles with vertices A, B, and C;

refers to triangles (more than one)

Parallelogram with vertices A,B,C,and D

refers to Parallelograms( more than one)

circle with center A

AB Segment with endpoint A and B

AB Length of segment AB

Ray AB with endpoint A passing through B

Line through points A and B

π Ratio of circumference to diameter of a circle.

s Usually Length of a side

b length of a base

A Area

h height of a figure

d diameter of a circle

r radius of a circle

P perimeter

C circumference

B Area of base

L.A. Lateral area

S.A. surface area

V volume

l slant height

a apothem

b

n-gon polygon with n sides

Arc with endpoints A and B

Arc with endpoints A and C containing B

measure of arc AB

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