an angle whose measure is between 0 degrees and 90 degrees
the region between two rays
a measurement of the region enclosed by the sides of a polygon Area is always expressed in squared units.
a metric unit of length; 1/100 of a meter
the set of all points in a plane that are the same distance (called the radius) from a given point (the center)
having the same size, shape and measure
unit of temperature in the metric system. Freezing = 0°C, Boiling = 100°C
unit of temperature in the English (Customary) system of measurement. Freezing = 32°F, Boiling = 212°F
a line segment passing through the center of a circle with endpoints on the circle.
the intersection of a pair of faces in a three-dimensional figure
a triangle with three equal sides and three equal angles
the plane figures that make up a solid figure
a customary unit of length 1 foot = 12 inches
a polygon with six sides
a customary unit of length 12 inches = 1 foot
a triangle with at least two equal sides and two equal angles
a unit of measurement for length in the metric system. 1 kilometer = 1000 meters
the standard unit of length in the metric system 1 meter = 100 centimeters
A metric unit of measurement for length. 1 meter = 1000 millimeters
An obtuse angle is greater than 90 degrees but less than 180 degrees
A quadrilateral with opposite sides that are parallel and of equal length and with opposite angles that are equal
the distance around the outside of a shape
a figure of which all points lie in the same plane
a closed plane figure (no gaps or openings) made with 3 or more sides and angles
a four-sided polygon
the distance from the center of a circle to any point on the circumference
a quadrilateral with four right angles and two pairs of opposite equal parallel sides
a parallelogram with four equal sides and equal opposite angles
An angle that measures exactly 90 degrees.
a triangle in which all three sides are different lengths
a line or curve on the edge of a shape that joins its vertices.
a 3-dimensional figure having length, width, and height.
a quadrilateral with four equal sides, four right angles, and opposite sides that are parallel
instrument for measuring temperature
a polygon with three sides
a quadrilateral with two parallel sides
point where surfaces or line segments meet; corner (plural: vertices)
A unit of measurement of length in the English (Customary) measurement system; 3 feet = 1 yard