Geometry Vocab

scalene triangle

• triangle with no congruent sides

• triangle with two congruent sides

• triangle with three congruent sides

parallelogram

• a parallelogram with 4 right angles

• a parallelogram with 4 equal sides

• a quadrilateral with 2 sets of parallel sides

• a quadrilateral with one set of parallel sides

square

• a parallelogram with 4 equal sides and 4 right angles

• a parallelogram with 4 right angles

• a quadrilateral with two sets of parallel sides

• a quadrilateral with one set of parallel sides

trapezoid

• quadrilateral with one set of parallel sides

• a 4 sided figure

• parallelogram with two sets of parallel sides

vertex

• a flat surface

• where faces meet

• where edges meet

edge

• where faces meet on a figure

• the edge of a cliff

• a flat surface on a plane

face

• a flat surface on a figure

• sides of a polygon

• where edges meet

congruent

• similar shapes

• same size different shape

• same size same shape

• same shape different size

an angle exactly 180 degrees

• acute

• obtuse

• straight

• right

a 9-sided polygon

• pentagon

• heptagon

• octagon

• nonagon