4th Grade Math Terms

square : a quadrilateral with 4 equal sides and 4 right angles

rhombus : a quadrilateral with 4 equal sides

trapezoid : a quadrilateral with one pair of parallel sides

acute triangle : a triangle where all three angles are acute

triangle : a three sided polygon

equilateral triangle : a triangle that has 3 equal sides and angles

counterclockwise : turning to the left; the opposite of a clock

symmetry : one half is the mirror image of the other half