points and lines
The perpendicular postulate states this
What is that there is exactly one line through the point perpendicular to the given line?
The formula for area of a circle states this.
What is A = Pi r squared?
The definition of parallel lines states this.
What are lines that don't intersect and have the same slope
A segment connecting two midpoints of two sides of a triangle is called this.
What is a midsegment?
Two angles that equal 90 degrees are called this.
What are complementary?
This geometric feature is represented by two capital letters, with a double arrowhead on top
What is a line?
The slope formula is written this way.
What is y2 - y1 / x2 - x1 ?
Angles that occupy the same position on parallel lines
What are corresponding angles?
If point A divides a segment in two congruent parts, point A is called this.
What is the midpoint?
The measurement of two congruent angles that are supplementary is this.
What are 90 and 90?
Naming system for a plane
What are three capital letters denoting points?
The Pythagorean Theorem states this
What is a2 + b2 = c2?
The reciprocal property states this
What is if a/b=c/d, then b/a=d/c?
Two segments with the same length
What are congruent?
Three ways to show triangles are similar
What are AA, SSS, and SAS?
Points that lie on the same line
What are collinear points?
The formula for the area of a triangle
What is A = 1/2 base * height
Angles that are interior angles that lie on opposite sides of the transversal
What are Alternate Interior Angles?
Commonly called the center of gravity
What is a centroid?
If two polygons are similar, the ratio of their perimeters is equal to this.
What is the ratio of their corresponding side lengths?
These types of lines make right angles
What are perpendicular lines?
The distance formula
What is the square root of (x1 - x2)2 + ( y1 - y2 )2
A line that intersects two parallel lines
What is a transversal?
A ray that cuts an angle in equal parts
What is an angle bisector?
The longest side of a right triangle
What is a hypotenuse?