Geometry Flashcards
GOODLUCK
is a polygon with four sides and four vertices (corners)
Quadrilateral
Two pairs of parallel sides
Parallelogram
one pair of parallel sides
trapezoid
no parallel sides
kite
non parallel sides are equal
isosceles trapezoid
all four angles are equal
opposite sides are equal
recrangle
all four sides are equal
rhombus
all four sides are equal
all four angles are equal
square
formula for radius
2 pi r
formula for diameter
pi d
circumference is given but solve for r
C
——
2 pi
circumference is given but solve for d
c
—
pi
the fixed point in the middle of the circle from which all points on the circle are equidistant
center
the distance from the center of the circle to any point on its circumference
radius
the distance across the circle passing through the center
diameter
a line segment the connects any two points on the circumference of the circle
chord
a line or line segment that touches the circle at exactly one point
tangent
a line that intersects the circle at two distinct points
secant
is a 2d geometric shape that is perfectly round and consists of all points in a plane that are equidistant from a fixed center point.
circle
is a curved portion if a circle’s circumference
arc
measures EXACTLY 180 degrees
semicircle
measures LESS THAN 180 degrees
minor arc
measures GREATER THAN 180 degrees
major arc