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Geometry Terms 2012
Geometry 1
Question | Answer |
---|---|
four sided polygon with at lest one pair of parallel sides | trapezoid |
the distance from the center of the circle to any point on the circle | radius |
area of a triangle | A=1/2 bh |
segment containing the center of the circle whose endpoints are on the circle | diameter |
a squared + b squared = c squared | pythagorean Thm |
line, segment, or ray that intersects a circle in exactly one point | tangent |
the angle formed by drawing lines from the center of the circle to points A and B is subtended by the arc | subtended |
A=pi r squared | area of a circle |
curved portion of a circle contained between two points | Arc |
a monomial or the sum or difference of two or more monomials | polynomial |
x sub 1 + x sub 2/ y sub 1 + y sub 2 /2 | Midpoint formula |
a real number that can be written as a ratio of two integers | rational numbers |
segment whose endpoints are on a circle | chord |
opposite/hypotenuse | sine |
number that cannot be written as a ratio of two numbers | Irrational numbers |
whole numbers and their opposites | integers |
(x-h)squared + (y-k)squared = r squared | equation for circle |
numbers that have only tow factors, themselves and 1 | prime numbers |
number that divides evenly into another number | factor |
d=sq rootof (x sub 2 - x sub 1) squared + ( y sub 2- y sub 1) squared | distance formula |
a symbol usually a letter, that represents one or more numbers | variable |
the numberical factor when a term has a variable | coefficient |
two points that lie on the same line are | collinear |
two angles whose sum equals 180 | supplementary |
opposite/adjacent | tangent |
two lines that intersect at a right angle | perpendicualr |
two coplanar lines that will never intersect or are identical | parallel lines |
1/cosine | secant |
two angles whose sides form two pairs of opposite rays | vertical angles |
1/sine | cosecant |
the side opposite of the right angle in a right triangle | hypotenuse |
statement where two ratios are equal | proportional |
adjacent/hypotenuse | cosine |
figures that have the same shape and all corresponding dimentions proportional | similiar figures |
angles are 45, 45, 90 | ratio of Isosceles triangle |
1/tangent | cotangent |
four sided polygon with four right angles and four congruent sides | square |
y=mx+b | slope intercept formula |
a four sided polygon with four right angles | rectangle |
C=2 pi r | circum. of a circle |
four sided polygon with two pairs of parallel sides | parallelogram |
m= (y sub1 - y sub 2) / (x sub 1 - x sub 2) | slope formula |