-
An angle that measures more than 90 degrees and less than 180.
obtuse
-
A quadrilateral with two parallel sides
parallelogram
-
The sum of the lengths of the sides of a polygon.
perimeter- Two polygons with the same area do not necessarily have the same perimeter.
-
Intersecting at a right angle. The altitude and base of a triangle.
perpendicular
-
An irrational number, represented by the symbol π,
approximately equal to 3.14,
which is equal to the ratio of the circumference of any circle to its diameter. The area of a circle equals πr2, and the circumference equals 2πr.
pi
-
A product obtained by multiplying a quantity by itself one or more times (e.g., the fifth power of 2 or 25 is 32.
power
-
An integer greater than 1 that has no factors other than 1 and itself. The first ten prime numbers are 2,3,5,711,13,17,23,29, and 31. Notice that 2 is the only even one of these.
Prime number
-
The result of multiplication
product
-
A polyhedron having for its base a polygon and for faces triangles with a common vertex.
Pyramid
-
The rule that states, "For any right tiring, the sum of the squares of the legs is equal to the square of the hypotenuse"
Pythagorean theorem
-
A four-sided polygon. Squares, rectangles, parallelograms, and trapezoids.
quadrilateral.
-
The result of division.
quotient
-
The symbol √, which by itself represents the square root. With the little number, it represents a higher root.
radical
-
The length of a line segment connecting the center and point on a circle. Also half the diameter.
radius
-
Having a place on the number line. For instance, π, because it has a location on the number line.
real
-
A pair of number whose product is 1. To get the _______ of a fraction, switch the numerator and denominator.
reciprocals
-
A quadrilateral with four right angles. Always a parallelogram, but not all parallelograms are these.
rectangle
-
A quadrilateral with four equal sides
rhombus
-
An angle measuring exactly 90°
right angle
-
A number that multiplied by itself a certain number of times will yield the given quantity. of 4, is 2
root
-
A triangle with sides of different lengths. 3-4-5 triangle
scalene triangel
-
A three-dimensional figure
solid
-
Two angles whose measures add up to 180°
supplementary angles
-
A quadrilateral with two parallel sides and two non parallel sides.
trapezoid
-
A doughnut-shaped surface generated by a circle rotated about an axis in its plane that does not intersect the circle.
torus
-
The amount of three-dimensional space taken up by a three dimensional object.
volume
|
|