2nd Semester Exam - Geometry Vocab

Vocabulary for 2nd Semester Exam/Final Exam - Honors Geometry

geometric mean

the square root of a product of two numbers

secant line

a line that intersects a circle at two points

semi circle

half of a circle (exactly 180 degrees)

scalene triangle

a triangle with no equal sides

union

the set containing all elements from two sets

parallelogram

a quadrilateral with both pairs of opposite sides parallel

diagonal

a segment connecting two non-adjacent vertices of a polygon

equilateral triangle

a triangle with all equal sides

tangent line

a line that touches a circle at exactly one point

tangent ratio (tan)

opposite side over adjacent side

dependent events

events where one affects the probability of another

diameter

a chord that passes through the center

intersection

the set of elements common to two sets

isosceles triangle

a triangle with exactly two equal sets

minor arc

an arc less than 180 degrees

kite

a quadrilateral with two pairs of adjacent equal sides

rhombus

a parallelogram with all sides equal

angle of elevation

the angle formed when looking upward at an object

chord

a segment with endpoints on the circle

trapezoid

a quadrilateral with exactly one pair of parallel sides

element

an object in a set

rectangle

a parallelogram with four right angles

sine

opposite side over hypotenuse

disjoint

sets that have no common elements in common (cannot happen at the same time)

major arc

arc greater than 180 degrees

radius

the distance from the center to a point on the circle

inscribed angle

an angle who vertex lies on the circle

independent events

events where one does not affect the other

conditional probability

probability of an event given another event has occurred

square

a quadrilateral with four equal sides and four right angles

cosine (cos)

adjacent side over hypotenuse

central angle

an angle whose vertex is at the center of a circle

complement

all outcomes not in the given event

Pythagorean Triple

three integers that satisfy a²+b²=c²

Similar Figures

figures with the same shape but not necessarily the same size

angle of depression

the angle formed when looking downward at an object

angle bisector

a line that divides an angle into two equal parts