Two or more points on the same line

A triangle with a 90 degree angle and two sides are equal

Given: If the polygon is a square, then it has four sides.
State the converse.

(x1+x2/2 , y1+y2/2)

The midpoint of the points (18, -3) and (2, -7)

Two or more points on the same plane

A triangle with a 90 degree angle and no sides are equal

Given: If the polygon is a square, then it has four sides.
State the contrapositive.

d=sqrt((x2-x1)^2+(y2-y1)^2)

The slope of the line containing the points (-5,16) and (-8,12)

Points R, S, and K

A triangle with one angle greater than 90 degrees and no sides are equal

Given: If the polygon is a square, then it has four sides.
State the inverse.

m=(y2-y1)/(x2-x1)

The distance between the points (1, -1) and (9,5)

The number of points on a line

A triangle with one angle greater than 90 degrees and two sides are equal

If p, then q.

y-y1=m(x-x1)

The equation of a line parallel to y=4x+10 at the point (0,-2)

Name this Plane.

The angles of an equilateral triangle

A polygon is a triangle if and only if it has three sides.

y=mx+b

The equation of a line perpendicular to y=1/2x-3 at the point (0,7)