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