Ch. 12.2 Analyzing Geometric Shapes-Level 1 Flashcards
If there is a line that the figure can be “folded over” on so that one-half of the figure matches the other half perfectly it is called ________ symmetry or _______ of Symmetry.
What is reflection symmetry and line (axis) of symmetry?
What are angles that are the same size and are opposite the sides that are the same length of an isosceles triangle called?
What are base angles?
Which tool is a plexiglas “two-way” mirror that is useful in finding lines of symmetry?
What is a Mira and what is it useful for?
If there is a point or center of rotation in which a figure can be rotated, less than a full turn, so that the image matches the original figure perfectly is considered to have _______ symmetry.
What is rotational symmetry?
The point in which a figure can be rotated, less than a full turn, so that the image matches the original figure perfectly is called _______ of _________.
What is center of rotation?
Figures for which only a full turn produces an identical image do not have ________ symmetry.
Which figures do not have rotational symmetry?
The set of points required to join two points in the most direct way is called a _________ __________.
What is a line segment? Example: top of a picture frame.
Two line segments that start at he same point is called a(n) ________.
What is an angle? Example: an open pair of scissors.
An angle formed by two line segments that an be oriented so on is vertical and one is horizontal is called a(n) __________ _______ or ________ __________.
What is a right angle or perpendicular segments? Example: Vertical Flagpole.
Two distinct line segments which, if extended in both directions, never meet are called _______ _____ ___________.
What are parallel line segments? Example: rail road tracks.
The dots at the end of a line segment are called _______.
What are endpoints?
The union of two segments with a common endpoint is called an _______.
What is an angle?
Segments that make up an angle are called _______.
What are sides?
The common endpoint of of an angle is called the _________.
What is a vertex?
Segments have the same _______ when there endpoints coincide.
Segments have the same length when their ___________ coincide.
When the sides of an angle are perpendicular, the angle is a _______ angle.
When the sides of an angle are ____________, the angle is a right angle.
The three line segments that make up a triangle should be defined as ________ of the _________.
The three line segments that make up a ________ should be defined as sides of the triangle.
The three angles that make up a triangle should be defined as ______ of the _______.
The three angles that make up a ________ should be defined as angles of the triangle.
The three vertices that make up a triangle should be defined as the ________ of the __________.
The three vertices that make up a _______ should be defined as the vertices of the triangle.
What triangle has all three sides being a different length?
What is a scalene triangle? Example: Bird Beak.
Which triangle has at least two sides the same length?
What is an isosceles triangle? Example: Pennant.
Which triangle has all three sides as the same length?
What is an equilateral triangle? Example: yield sign.
What is a triangle with one right angle?
What is a right triangle?
What is a line segment?
What is a side?
What is an angle?
What is the union of two line segments with a common endpoint?
What is a vertex?
What is the common endpoint called?
Which triangle is a special isosceles triangle? Why?
An equilateral triangle is a _______- ________ triangle because is has at least two sides the same length.
What is a quadrilateral with two pairs of parallel sides?
What is a parallelogram? Example: Railing
What is a quadrilateral with four sides the same length?
What is a rhombus? Example: car jack
What is a quadrilateral with four right angles?
What is a rectangle? Example: door
What is a quadrilateral with four sides the same length and four right angles?
What is a square? Example: floor tile
Which properties help one determine the type of a given quadrilateral?
What are the length of sides, angles and whether sides are parallel or perpendicular called and what are they useful for?
What is a line segment formed by connecting non adjacent (opposite) vertices?
What is a line segment?
If two sides share a common vertex, they are considered ________.
If two sides are a common _______, they are considered adjacent.
If two sides are not adjacent they are considered to be _________.
If two sides are not _________ they are considered to be opposite.
Which two quadrilaterals have adjacent sides that are the same length?
A square and a rhombus have ________ sides that are the same length.
Which four quadrilaterals have both pairs of opposite sides the same length?
A parallelogram, rhombus, rectangle, and square all have both pairs of ________ sides the same length.
In which two quadrilaterals are all angles right angles?
Only in a square and a rectangle are all angles right angles.
Which four quadrilaterals are both pairs of opposite sides parallel?
A parallelogram, rhombus, rectangle, and square all have both pairs of opposite sides _________.
In which two quadrilaterals are adjacent sides always perpendicular?
In a rectangle and square the adjacent sides are always _________.
In which two quadrilaterals are the diagonals the same length?
In a rectangle and square the diagonals are the same length.
In which four quadrilaterals do the diagonals intersect at the midpoint?
In a parallelogram, rhombus, rectangle, and square the diagonals intersect at the __________.
In which two quadrilaterals are the diagonals perpendicular?
Only in a rhombus and a square are the diagonals _____________.
