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# 7th Math FINAL

### 7th Grade MATH Final Review 2013-2014

TermDefinition
Line Plot Type of graph that shows how often something occurs using x's.
Acute Angle An angle that measures less than 90 degrees.
Obtuse Angle An angle that measures more than 90 degrees but less than 180 degrees.
Right Angle An angle that measures exactly 90 degrees.
Complementary Angles Two angles that add together to equal 90 degrees.
Supplementary Angles Two angles that add together to equal 180 degrees.
Polygon A closed, sided figure.
Pentagon A 5 sided polygon.
Heptagon A 7 sided polygon.
Regular Polygon A polygon with all equal sides and angles.
Equilateral Acute Triangle A triangle with all equal sides and all acute angles.
Scalene Right Triangle A triangle with no equal sides and one right angle.
Isosceles Right Triangle A triangle with two equal sides and one right angle.
Scalene Obtuse Triangle A triangle with no equal sides and one obtuse angle.
Isosceles Acute Triangle A triangle with two equal sides and all acute angles.
Parallelogram; Rhombus A quadrilateral with two sets of parallel sides that are all equivalent.
Parallelogram; Rectangle A quadrilateral with two sets of parallel sides and four right angles.
Trapezoid A quadrilateral with one set of parallel sides.
Parallelogram A quadrilateral with two sets of parallel sides.
180 Degrees The sum of the three angles in any triangle.
360 Degrees The sum of the four angles in any quadrilateral.
Perimeter The distance around an object; add all sides.
C = 2πr The formula for circumference of a circle; use when given the radius.
C = πd The formula for circumference of a circle; use when given the diameter.
Radius The distance from the center of a circle to the outside edge.
Diameter The distance across a circle going through the center.
A = bh The formula for area of a rectangle.
A = 1/2bh The formula for area of a triangle.
A = 1/2(b1 + b2)h The formula for area of a trapezoid.
Probability Written as a fraction of favorable outcomes to total outcomes.
Compound Probability The probability of more than one event happening together. (multiple events: multiply)
Square Root Finding what number times itself gives the number under the radical.
Triangular Prism A 3D figure that has two congruent triangular bases and 3 rectangular faces.
Pentagonal Prism A 3D figure that has two congruent pentagonal bases and 5 rectangular faces.
Translation A slide on the coordinate plane.
Reflection A flip on the coordinate plane.
Square Pyramid A 3D figure that has one square base and 4 triangular faces.
B Area of the base
Venn Diagrams A type of statistical representation used when showing overlap of data.
Range The difference between the highest and lowest values in a set of data.
Mean The average of a set of data.
Median The middle number in a set of data when ordered numerically (least to greatest).
Mode The number that shows most frequently in a set of data.
Line Graph A type of statistical representation used when showing changes over time.
Created by: hmyers