In order to find a line of reflection, construct this.
What is a perpendicular bisector?
100
This is the term for a 90 degree angle
What is right angle?
100
A triangle that has all sides the same length
What is equilateral
100
When the point (1, 2) is reflected over the x-axis, these are its new coordinates.
What is (1, -2)?
100
This is a shape that has 6 sides.
What is a hexagon?
200
Two lines that will never touch and are intersected by a third line to form special angles.
What is parallel lines cut by a transversal?
200
An angle that is less than 90 degrees
What is acute
200
A triangle with two sides the same length
What is isosceles
200
When the point (5, 10) is rotated 90 degrees counterclockwise, these are its new coordinates.
What is (-10, 5)?
200
This is the minimum degrees for rotational symmetry for a regular pentagon.
What is 72?
300
To perform a translation, slide a figure along this ray.
What is a vector?
300
an angle that is greater than 90 degrees
What is obtuse
300
A triangle with one angle greater than 90 degrees
What is obtuse triangle
300
When the point (-2, 8) is translated 2 units to the right and five units down, these are its new coordinates.
What is (0, 3) ?
300
A right triangle has one angle that is 60 degrees. This is the measure of the 3rd angle of the triangle.
What is 30 degrees?
400
This is part of a line with two endpoints.
What is a line segment?
400
The sum of the measures of the two non-adjacent interior angles is equal to this angle.
What is the exterior angle?
400
A triangle with a 90 degree angle and no sides the same length
What is right, scalene
400
In this rigid motion, orientation is NOT preserved.
What is a reflection?
400
Angle ABC is bisected by line BD. These are the two congruent angles that are formed.
What are angle ABD and angle CBD?
500
An additional or extra line that is added to a diagram in order to help us solve a problem or prove a concept.
What is an Auxiliary Lines?
500
A pair of non-adjacent angles formed by the intersection of two straight line.
What are vertical angles?
500
A boat has a sail with one pair of perpendicular lines, and two sides the same length. What kind of triangle is it? (hint: there are two vocabulary words to use here)
What is a right, isosceles triangle?
500
These ARE preserved after a sequence of rigid motions.
What are angle measures and side lengths?
500
!!!! DOUBLE JEOPARDY !!!!
Given BD is the perpendicular bisector of AC, these are TWO valid conclusions that may be drawn from the given.
What is ... AD is equal to DC,
and angle ADB & angle DBC are right angles.