Geometry Polycabulary

having the exact same measure

• congruent

• square

• perpendicular

• quadrilateral

any closed, two-dimensional shape with straight sides

• polygon

• equilateral

• obtuse

• parallel

a flat shape that has a width and a height

• two-dimensional shape

• three-dimensional shape

• regular polygon

• irregular polygon

triangle

• a 3-sided polygon

• a 4-sided polygon

• a 5-sided polygon

• a 2-sided polygon

a 4-sided polygon

• triangle

• quadrilateral

• acute angle

• pentagon

a polygon with all congruent sides and angles

• regular polygon

• irregular polygon

• isosceles triangle

• scalene triangle

a polygon with some or no congruent sides and angles

• regular polygon

• irregular polygon

• equilateral triangle

• two-dimensional figure

any angle less than 90 degrees

• acute

• right

• obtuse

• triangle

a triangle with all angles less than 90 degrees

• acute triangle

• right triangle

• obtuse triangle

an angle that is exactly 90 degrees

• acute angle

• right angle

• obtuse angle