Geometry Definitions
Circles
Translations
Rotations
Random
100
What is a ray?
Part of a line that has exactly one endpoint
100
Find the radius of a circle with a diameter of 15 cm.
7.5 cm
100
In what type of translation does the y-coordinate change and the x-coordinate stay the same?
Vertical translation
100
Describe a rotation
A transformation that turns a figure about a fixed point called the center of rotation.
100
How do translations, reflections, and rotations affect the size and shape of an image?
They have no effect on size or shape.
200
Complementary Angles
Two angles together creating a sum of 90 degrees
200
Find the diameter of a circle with a radius of 13 cm
26 cm
200
Write a rule to describe this translation:
(x, y) --> (x, y + 4)
200
What is rotational symmetry?
A figure has rotational symmetry if you can rotate it 180 degrees or less so that its image matches the original figure.
200
A triangle with all acute angles and exactly two congruent sides
isosceles acute triangle
300
Alternate Interior Angles
Angles that are in the interior of a pair of lines and on opposite sides of the transversal.
300
Find the circumference of a circle with a radius of 5 cm. (Keep pi in your answer)
10π
300
Write a rule to describe this translation:
(x,y) --> (x +6, y-2)
300
What is the angle of rotation:
180 degrees
300
Angles that have the same measure, are opposite each other and are formed by two intersecting lines
Vertical Angles
400
Polygon
A closed plane figure with at least three sides. The sides meet only at their endpoints.
400
Find the measure of the central angle that you would draw to represent 36%
129.6 degrees
400
Graph each segment and its image for the given translation:
A (0,0)
B (0, 5)
2 units left
400
What is the image of point A (7, -2) after a rotation of 90 degrees through the origin
A' (2, 7)
400
List congruent corresponding parts 
Caitlin will check
500
Chord
A segment whose endpoints are on the circle.
500
Fifty students were asked their favorite sport. Thirty said football, 15 said baseball, and the rest said basketball or soccer.
What is the measure of the central angle for the students who picked baseball?
108 degrees
500
Graph each segment and its image for the given translation:
S (4,3)
T (1, -5)
4 units left, 1 unit up
500
Draw a describe a figure that has rotational symmetry
Let me check!
500
Suppose a survey indicates that as 8 pm, 40% of viewers watched channel X. 25% watched channel Y, and 35% watched channel Z. Make a circle graph of the data.
Caitlin will check