GEOMETRY
perimeter
The distance around a figure
cylinder
a figure whose bases are circular , congruent and parallel to each other. 2 faces o vertices 2 edges
triangular prism
a prism whose bases are triangles 5 faces 6 vertices 9 edges
cone
a shape whose base is a circle and whose sides meet at a point 1 face 1 vertices 2 edges
pyramid
a solid figure with a polygon base and triangular sides that meet at a single point 5 faces 5vertices 8 edges
cube
a three-dimensional shape with six square or rectangular sides 6 faces 8 vertices 12 edges
2 dimensional figures
flat figures you draw on paper
line segment
part of a line that has two endpoints
pentagons
pentagons with 5 sides and 5 angles
vertex
points where surfaces meet
triangle
polygon with 3 sides and 3 angles
hexagon
polygon with 6 sides and 6 angles
octagon
polygon with 8 sides and 8 angles
quadrilaterals
polygons with 4 sides
rectangles
quadrilaterals with 4 right angle and opposite sides are equal
square
quadrilaterals with 4 right angles and all sides are equal
polygon
shapes that are made out of line segments which are connected and closed and no curves
right angle
square corner formed by two lines that make an "L" or "T"
angle
two rays that have the same endpoint
acute angle
An angle less than 90 degrees
obtuse angle
An angle more than 90 degrees
congruent
Having the same size and shape