Geometry!
The opening that is formed when two lines, line segments, or rays intersect.
what is an angle
A period of one hundred years.
What is a century
The bottom number of a fraction; the number that tells how many parts are in a whole.
What is a denominator
A triangle whose largest angle measures more than 90° and less than 180
What is an obtuse triangle
The grouping of addends does not affect their sum. In symbolic form, a+ (b+c) = (a+b) +c. Unlike addition, subtraction is not associative
What is the Associative Property of Addition
Lines that stay the same distance apart; lines that do not cross
What are parallel lines
A period of ten years.
What is a decade?
The top number of a fraction; the number that tells how many parts of a whole are counted.
What is a numerator
A triangle in which all sides are the same length and all angles are the same measure.
What is equilateral triangle
Numbers that are close in value to the actual numbers and are easy to add, subtract, multiply, or divide mentally.
What are compatible numbers
Two lines that intersect at right angles.
What are Perpendicular lines
The difference between a starting time and an ending time.
What is elapsed time?
A fraction whose denominator of 100 is expressed with this sign %
What is a percent
A triangle whose largest angle measures 90°
What is a right triangle
Able to be divided by a whole number without a remainder.
What is divisible
A closed, flat shape with straight sides.
What is a Polygon
A period of one thousand years
What is a millennium
A symbol used to separate the ones place from the tenths place
What is a decimal point
A triangle with at least two sides of equal length and two angles of equal measure.
What is an isosceles triangle
Noun: A whole number that divides another whole number without a remainder.
What is a factor
A point of an angle, polygon, or solid where two or more lines, rays, or line segments meet.
What is a vertex
The period of time from midnight to just before noon.
What is a.m.
A number expressed as a whole number plus a fraction.
What is a mixed number
A triangle with three sides of different lengths
What is a scalene triangle
A counting number greater than 1 whose only two factors are the number 1 and itself.
What is a prime number