triangles
what is an equilateral triangle
a type of triangle with equal length and same size angles
what is mean
mean: the average when you add all the numbers and divide by the numbers in the set
What is a trapezoid
A quadrilateral only one set of parallel sides
what are congruent angles
congruent means the same
what is a ray
has one end point
what is a right triangle
a type of triangle with one right angle
what is median
the middle number(after you order the numbers smallest to biggest and find the middle number
What is a parallelogram
A quadrilateral with 2 sets of parallel sides each set is equal in length includes rectangles,squares,rhombus
what are adjacent angles
angles the share a ray
what is a line
straight line,never ends in either direction
what is an obtuse triangle
a type of triangle with one obtuse angle
What is mode
The most popular number(there can be more than one mode
What is a rhombus
A quadrilateral
A parallelogram, with four equal sides Opposite angles are the same and includes squares
what are vertical angles
angles that are made when two lines intersect they are always the congruent/same
what is a line segment
part of a line.has two end points
what is an isosceles triangle
a type of triangle with two sides the same and two angles the same
What is range
The largest number minus the smallest
What is a polygon
A closed Shape
Only straight line segments(not round)
Can be regular(all sides same length)
Or irregular(all side different lengths)what are supplementary angles
adjacent angles that make a 180 degree angle
what are perpendicular lines
lines that cross,making four right angles
what is an acute triangle
a type of triangle with all acute angles
(e.g equilateral triangles are always acute angles)
What is a interquartile range
The range of numbers between the upper and lower quartiles
Upper quartile-lower quartile =interquartile range
what is a kite
a quadrilateral
two pairs of congruent sides that are adjacent to each other.
not a parallelogram
two diagonals are perpendicular
the diagonals are not the same length
WHAT IS A COMPLEMENTARY ANGLE
adjacent angles that make a 90 angle
what are parallel lines
two lines that will never cross