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3rd Quarter Vocab..6
Question | Answer |
---|---|
Variable | a letter used to represent an unknown number The value can vary (change). |
x-axis | the horizontal axis on a coordinate grid |
y-axis | the vertical axis on a coordinate grid |
Origin | the point (0,0) where the x-axis and y-axis intersect (meet) |
Triangle | a polygon with 3 sides and 3 angles |
Quadrilateral | a polygon with 4 sides and 4 angles |
180 degrees | the sum of the angles in a triangle |
Acute angle | an angle that measures less than 90 degrees |
Obtuse angle | an angle that measures more than 90 degrees |
Scalene triangle | a triangle with no sides equal and no angles equal |
Isosceles triangle | a triangle with 2 sides equal and 2 angles equal |
Equilateral triangle | a triangle with all 3 sides and 3 angles equal |
Area | the number of square units needed to cover a region |
Volume | the number of cubic units needed to fill a space |
Mean | the average of a set of data (add, then divide) |
Median | the middle number in a set of data when the data is in order least to greatest |
Mode | the number that appears the most in a set of data |
Range | the difference between the highest and lowest number in a set of data (big - small) |
Right angle | an angle that measures exactly 90 degrees |
straight angle | an angle that measures exactly 180 degrees |