GEOMETRY UNIT 5 :pencil2: (Coordinate Proofs (Midpoint Formula (The…
GEOMETRY UNIT 5 :pencil2:
no reasons, very organized constructed response, use distance formula, midpoint formula, slope
The midpoint of the segment that joints points (x1,y1) and (x2,y2) is the point (x1+x2/2, y1+y2/2)
The graph of any equation that can be written in the form Ax+By=C, with A and B not both zero, is a line.
A line with the equation y=mx+b has slope m and y-intercept b.
The distance d between points (x1, y1) and (x2, y1) is given by d = √(x2-x1)^2 + (y2 - y1)^2.
Midsegment of a Triangle
a segment connecting the midpoints of two sides of a triangle.
Midsegment of a Trapezoid
the segment connecting the midpoints of the two non-parallel sides.
The angle between any side of a shape, and a line extended from the next side.
Postulates and Theorems
Sum of Interior Angles of a Polygon
The sum,s, of the measures of the interior angles of a polygon with n sides is given by s=(n-2)180.
Measure of Interior Angles of a Polygon
The measure, m, of an interior angle of a regular polygon with n sides is given by m=180-360/n.
Sum of Exterior Angles of a Polygon
The sum of the measures of the exterior angles of a polygon is 360 degrees.