Jeopardy Introductory Geometry Vocabulary

Polygon 1 Circles 2 Lines 3 Measure 4 Angles 5 Pot Luck

A shape with exactly five sides (100)

Pentagon

A triangle where all the sides have different lengths (200)

Scalene Triangle

A polygon with exactly eight sides (300)

Octagon

Two polygons with the same shape (400)

Similar Polygons

Two polygons with the same shape and the same size (500)

Congruent polygons

A line segment with its endpoints on a circle, and going through the center (100)

Diameter

A line segment with its endpoints on a circle (200)

A Chord

A line segment with one endpoint at the center of the circle and the other endpoint on the circle (300)

A radius

The distance around the circle (400)

The circumference 2 πr or πd

The formula to find the area (the number of square units) of a circle (500)

πr 2

Lines that intersect at right angles to each other (100)

Perpendicular Lines

Two lines on the same plane that never intersect (200)

Parallel Lines

The tool used to make circles (300)

A compass

Two lines on different planes that never intersect (400)

Skew lines

A part of a line that has one endpoint and extends without end in the other direction (500)

A Ray

In a rectangle, the product of the length and the width (100)

Area

The distance around a polygon (200)

The perimeter

To multiply a number by itself, gives you the ___ of that number (300)

The square

In a prism, the length times the width times the height (400 )

The volume

The sum of the areas of the faces of a solid figure (500)

The surface area

Two rays connected by a common endpoint (100)

An angle

When two angles add up to 90 0 (200)

Complementary Angles

Two angles side-by-side, with a common ray (300)

Adjacent Angles

Two angles that add up to (400)

Supplementary Angles

The tool used to measure the number of degrees in an angle (500)

A protractor

An equation that shows two equivalent fractions or ratios (100)

A proportion

The symbols >, >,≤,≥ and ≠ (200)

Symbols of Inequality

The math that deals with angles and shapes (300)

Geometry

The math that deals with all possible outcomes of an event (400)

Probability

A figure that can be folded so that the two parts of the figure match (500)

Symmetry