Core geometry formulas and shape properties tested on the GRE quantitative reasoning section.
34 cards · basic cards · AI-written, checked twice. Edit anything.
- What is the formula for the area of a triangle?
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A = (1/2) * base * height- What is the sum of interior angles in any triangle?
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180 degrees- State the Pythagorean theorem.
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a^2 + b^2 = c^2, where c is the hypotenuse- In an isosceles triangle, what is true about the base angles?
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The base angles are equal- What is the measure of each interior angle in an equilateral triangle?
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60 degrees- State the triangle inequality theorem.
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The sum of any two sides must be greater than the third side- What is the formula for the circumference of a circle?
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C = 2*pi*r or C = pi*d- What is the formula for the area of a circle?
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A = pi*r^2- What is the relationship between a circle's radius and diameter?
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Diameter = 2 * radius- What is the formula for arc length on a circle?
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Arc length = (theta / 360) * 2*pi*r, where theta is the central angle in degrees- What is the formula for the area of a sector of a circle?
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Area = (theta / 360) * pi*r^2, where theta is the central angle in degrees- What is the formula for the area of a rectangle?
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A = length * width- What is the formula for the perimeter of a rectangle?
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P = 2 * (length + width)- What is the formula for the area of a parallelogram?
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A = base * height- In a parallelogram, what is the relationship between opposite sides?
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Opposite sides are equal in length and parallel
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