Common Geometry Equations
Flashcard
•
Mathematics
•
9th - 12th Grade
•
Practice Problem
•
Hard
Patricia Niehaus
FREE Resource
Student preview

8 questions
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1.
FLASHCARD QUESTION
Front
Pythagorean Theorem
Back
Given a right triangle, this theorem states that the square of the hypotenuse is equal to the sum of the squares of the other two sides.
2.
FLASHCARD QUESTION
Front
Equation of Parallel Lines
Back
In a coordinate plane, two lines are parallel if they have the same slope. The equation of parallel lines can be written as y = mx + b, where m is the slope.
3.
FLASHCARD QUESTION
Front
Equation of Perpendicular Lines
Back
Two lines are perpendicular if the product of their slopes is -1. If one line has a slope of m, the perpendicular line will have a slope of -1/m. These slopes are called negative reciprocals.
4.
FLASHCARD QUESTION
Front
Area of a Rectangle
Back
The area of a rectangle is calculated by multiplying its length by its width. Formula: Area = length times width.
5.
FLASHCARD QUESTION
Front
Area of a Circle
Back
The area of a circle is calculated using the formula: Area = π × radius².
6.
FLASHCARD QUESTION
Front
Circumference of a Circle
Back
The circumference of a circle is the distance around it, calculated as Circumference =
2 (π) (radius).
7.
FLASHCARD QUESTION
Front
Perimeter of a Polygon
Back
The perimeter of a polygon is the total length of its sides. It is calculated by adding the lengths of all the sides.
8.
FLASHCARD QUESTION
Front
Distance Formula
Back
The distance formula is used to determine the distance between two points in a plane. It is derived from the Pythagorean theorem and is given by: Distance = √((x₂ - x₁)² + (y₂ - y₁)²).
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