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Summary GRE Math exam questions and answers
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GRE Math exam questions and answers
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GRE Math exam questions and answersThe sum of the angles in a quadrilateral is - 360°
Any n-sided polygon can be divided into how many triangles? (by drawing
diagonals from one vertical) - n-2
The sum of the measures of the n angles in a polygon with n sides - (n-2) x 180
In any polygon, all external angles equal up to - 360°
If you measure all exterior angles in a polygon, they all equal - 360°
In any Regular Polygon, the measure of each interior angle - (n-2)x180/n
In a Regular Polygon, the measure of each exterior angle - 360/n
The consecutive angles in a parallelogram equal - 180°
A quadrilateral where two diagonals bisect each other - Parallelogram
,GRE Math exam questions and answers
In a rectangle, all angles are - Right
In a Rectangle, each angles measures - 90°
Each diagonal divides a square into 2 - 45 45 90 Right triangles (x, x, x*square root
of 2)
What kind of trapezoid has equal parallel sides? - Isosceles Trapezoid
The Perimeter of a rectangle - P=2(l+w)
The Perimeter of a Square - P=4s (s=side)
Area of a Parallelogram: - A=(base)(height)
Area of a Rectangle: - A=(side)² or A=½(diagonal)²
Area of a Trapezoid: - A=½(base₁+base₂)(height)
, GRE Math exam questions and answers
For any given perimeter, the rectangle with the largest AREA is a - Square (versus a
rectangle)
For any given Area, the rectangle with the smallest perimeter is a - Square (versus
a rectangle)
(x-y)(x+y) - x²-y²
(x-y)² - x²-2xy+y²
(x+y)² - x²+2xy+y²
An Angle that's 180° - Straight Angle
The sum of all angles around a point - 360°
If one of the angles formed by an intersection is right, they're all right - True
If a pair of parallel lines is cut by a transversal that's not perpendicular, the sum of
any acute angle and any obtuse angle is - 180
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