30 terms

polygons

shapes that have straight sides

Three types of polygons

Triangles, squares & rectangles

rhombus

has two obtuse and two right angles

hexagon

Has 6 sides

trapezoid

has two parallel sides with equal distance between them

pentagon

has five sides

quadrilaterals

polygons that have 4 sides

three dimensional shapes

have edges, faces and vertex

cylinder

a 3-dimensional figure that has 2 congruent circular faces (soup can)

vertex

the point where two sides of a polygon meet

cone

a shape whose base is a circle and whose sides taper up to a point

geometric pattern

a repeating pattern of shapes: triangle, triangle, rhombus

similar shapes

have a same shape, but are different sizes

congruent shapes

are exactly the same

angles

two rays with the same endpoint

acute angles

less than 90 degrees

line

No ends

ray

has one point

obtuse angles

more than 90 degrees

right angle

an angle that measures exactly 90 degrees with square corners

intersecting lines

lines that meet

line of symmetry

line that divides a shape into 2 congruent parts (both sides are EXACTLY the same)

What is the difference between a SQUARE and a RHOMBUS?

A square has only right angles and a rhombus two obtuse and two acute angles

What is the difference between a parallelogram and a rectangle?

A parallelogram has two obtuse angles and two acute angles

parallelogram

has two obtuse angles and two acute angles

square

has right angles

rectangles

have right angles

where is the half inch mark?

The longer line right in the middle between the numbers

where is the nearest centimeter?

the longer lines that are numbered and closer together on the ruler

what are two dimensional shapes?

flat shapes