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Angles
Figures
Area and Perimeter
Congruent/Similar Figures
Basic Terms
100
90 degrees
What is the measurement of a right angle?
100
A closed figure made by connecting line segments, where each line segment end connects to only one end of two other line segments.
What is a polygon?
100
The size of the region enclosed by the figure.
What does area measure?
100
A figure that can be folded in half and is the same on both halves.
Define a symmetric figure.
100
No, a line extends forever.
Does a line ever end?
200
Acute, right, and obtuse angles.
What are the names of the 3 angles classified by their degrees?
200
Rectangle, square, parallelogram, rhombus, trapezoid.
Give two examples of quadrilaterals.
200
Length and width.
What 2 measurements are multiplied to find the area of a rectangle?
200
Similar figures.
What is it called when figures have the same shape?
200
The point where lines, rays, figures, or line segments meet to form a common point.
What is the point of interesection?
300
An angle is formed by 2 rays that share the same endpoint.
What is an angle?
300
A decagon.
What is an 8-sided polygon called?
300
Triangle
Area=1/2base x height is the formula for what figure?
300
Figures that have the same shape and size.
What are congruent figures?
300
A line that has 2 distinct endpoints.
What is a line segment?
400
180 degrees
How many degrees do supplementary angles make?
400
Equilateral, Isoceles, and Scalene triangles.
What are the three types of triangles that are named because of the length of their sides?
400
The sum of the lengths of all the sides of a figure.
What is perimenter?
400
A rotation of the figure.
What is it called when a figure is turned?
400
A straight line that begins at one point and extends in one direction forever.
What is a ray?
500
Two angles whose measurements add up to 90 degrees.
What are complementary angles?
500
A figure is convex if every line segment drawn between any 2 points inside the figure lies entirely inside the figure.
What is a convex figure?
500
The distance around the circle.
What is the circumference of a circle?
500
When a figure is flipped along a line.
What is a reflection?
500
Lines in the same plane that never intersect.
What are parallel lines?