Geometry

Front

Isosceles Triangle

Back

a triangle with at least two angles having the same measure

SOS-At least TWO sides are congruent/equal.

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Congruent

Back

"congruent" means two shapes or sides are exactly the same, the same size and shape, even if they are turned or flipped. 

Front

Polygons

Back

a polygon is a flat, closed shape made of straight lines, like a triangle, square, or pentagon, with at least three sides. 

Front

Non Polygons

Back

a non-polygon is a shape that isn't a polygon, meaning it's not flat, doesn't have straight sides, or isn't fully closed like a circle or a shape with curves. 

Front

Quadrilaterals

Back

a closed shape with four straight sides and four corners (also called vertices). Think of it like a four-sided shape, like a square, rectangle, or even a diamond. 

Front

Quadrilateral Hierarchy

Back

Imagine quadrilaterals as a family tree of shapes! A quadrilateral is the big umbrella term for any four-sided shape, and then we have special types like rectangles, squares, and parallelograms, which are all also quadrilaterals. 

Front

Equilateral Triangle

Back

a triangle with three equal sides and 3 equal angles

Front

Scalene Triangle

Back

a triangle with no equal sides

Front

Classifying Triangles by sides

Back

Front

Parallelogram

Back

a polygon with exactly 4 sides and 2 sets of sides that will never meet (2 sets of parallel sides)