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15 Cards in this Set
 Front
 Back
angle factoids

ther are 90 degrees in a right triangle
 when two straight lines intersect, angles opposite of each other are equal  there is 180 degrees in a triangle  two lines are perpendicular when tehy meet at a 90 degree angle  there are 180 degrees in a straight line  bisect means to cut directly in half  four sided figures' angles add up to 360 degrees 

line

 a line has no width and extends infinitely


ray

extends infinitely in one point but has an endpoint.
the degree measure of the ray is 180 

line segment

is part of a line and has two endpoints


tangent

always perpendicular to the radius


square

all 4 sides equal
all 4 angles each equal 90 degrees area equal a side times another side perimeter equals 4s 

parallelogram area

base times height


rectangle area

length times width


triangle area

1/2 (base x height)


triangle perimeter

sum of all sides


triangle angles

shortest side equals the smallest angle
 angles add up to 180 degrees 

isoscoles triangle

two sides are equal, angles opposite to each other add up


diameter

straight line distance from one point on the circle to another throught the center point
=2radius 

chord

any line segment from one point on the circle to another
 the diameter is the largest chord 

circumference

distance around the outside of the circle
 2 x oi x radius 