Measuring and Constructing Angles
Symmetry of Shapes
Dilations
Rotations
Pairs of Angles
100
tool used to measure the degrees of angles
What is a protractor
100
lines that can be drawn through a shape that make it perfectly symmetrical on both sides
What is lines of symmetry
100
a dilation _______ or _______ a shape
What is enlarges or reduces
100
a rotation is a type of ________
What is transformation
100
of complementary and supplementary angles, _________ angles add up to 90 degrees
What is complementary
200
shorthand way of writing "the measure of"
What is m∠
200
the name of the image before it is rotated, translated, dilated, or reflected
What is pre-image
200
a dilation is a type of....
What is transformation
200
the point at which a shape is rotated is called the......
What is center of rotation
200
true/false: angles must be touching each other to be complementary or supplementary
What is false
300
the degrees between two rays extending in different directions from a point
What is an angle measure
300
a figure has __________ when it can be exactly reflected across a line
What is line symmetry
300
if the first set of coordinates in a plane is (5,9) and it is dilated by x and the second set of coordinates is (10,18), what is the scale factor
What is x = 2
300
true/false: a rotation is an isometry
What is true
300
angles that have a common side or vertex
What is adjacent angles
400
the middle point on a three-letter named angle
What is the vertex
400
another name for line of symmetry
What is axis of symmetry
400
the factor by which the shape is enlarged or reduced is called the _________
What is scale factor
400
how far the figure is rotated
What is angle of rotation
400
a _____ _____ of angles is a pair of adjacent angles whose non-adjacent sides extend outward
What is linear pair
500
when using a protractor, you measure the angle with the ____ row of numbers across the top
What is the top
500
a shorthand way to find the number of lines of symmetry in a shape
What is counting the sides of the shape
500
a dilation changes the size of a figure but does not......
What is change the shape
500
to rotate the figure 180 degrees, you must ______ the ____ of ___ coordinates
What is flip the signs of all coordinates
500
if an obtuse angle measures 98 degrees, and the other angle measure is x, what is the measure of the second angle is ___
what is 82 degrees
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