Distance Formula
What is the distance formula?
d = square root( (x2-x1)^2 + (y2-y1)^2)
What is a perpendicular bisector?
A line, ray, or segment that intersects a segment at its midpoint.
If we have an angle <XYZ, what is its vertex?
Y
Divides the segment into two equal segments.
What is the formula for geometric sequences?
an = a1(r)n-1
Find the distance between the two points: (-1,2) and (0,5)
square root of 10
Solve for x: AC = 21, AB = x+4, and BC = 8x-1.
x = 2
The common endpoint of two rays is called the ______.
vertex
Define perpendicular bisector.
A line, ray, or segment that intersects a segment at its midpoint.
Solve for x: 4x = 64
x = 3
Find the distance between (10, 9) and (-1, -2).
square root of 242
If segment ABC = 22 and B is the midpoint, what are AB and BC?
AB and BC = 11
If <A and <B are congruent, and m<B = 45 degrees, what is m<A?
45 degrees
Define congruent segments.
Length of both segments is equal.
What is Ms. Denny's cat's name? (Hint: Starts with a 'P')
Phoebe
What are y1 and y2 in the following coordinates? (22, 11) and (-5, 6)
y1 = 11 and y2 = 6
If AB and CD are congruent and CD = 14, what is AB?
14
An angle is formed by two _____ with a common endpoint.
rays
Define angle bisector.
A ray that divides an angle into two smaller angles.
What is Ms. Clowdus' cat's name? (Hint: Starts with an 'A')
Agnes
Find the length of AB if A(-3, 10) and B(-2, 3).
If A, B, and C are collinear points and B is between A and C, then AC = AB + BC.
If D is the interior of <ABC, then <ABC = <ABD + <DBC. What is this called?
Angle addition postulate
Acute is less than 90 degrees, obtuse is larger than 90, and right is 90.
What is the difference between a segment and a ray?
Segment has end points, a ray continues on with arrows.