Postulate 1-1 to 1-10

1-10

The area of a region is the sum of the areas of its non overlapping parts

Distance formula

Distance = the square root of (X2-X1)^2 + (Y2-Y1)^2

Midpoint

M= X1 + X2 over 2 & Y1+Y2 over 2

1-1

Through any 2 points there is exactly 1 line .

1-2

If 2 lines intersect, then they intersect in exactly 1 point.

1 - 8 Angle Addition Postulate

If point B is in the interior of angle AOC, then the measurement of angle AOB + the measurement of angle BOC = the measurement of angle AOC.

1 - 8 Angle Addition Postulate part 2

If ray AOC is a straight angle then the measurement of angle AOB + the measurement of angle BOC = 180

1-4

Through any 3 noncollinear points there is exactly 1 plane

1-9

If 2 figures are congruent, then their areas are equal

1-3

If 2 planes intersect, then they intersect in exactly 1 line.

1-6 Segment Addition Postulate

If 3 points A, B, &C are collinear & B is between A & C then AB + BC = AC.

1-5 Ruler Postulate

Points of line can be put into one-to-one correspondence with the real numbers so that the distance between any 2 points is the absolute value of the difference of the corresponding numbers