This is a quadrilateral with at least one pair of parallel sides.
What is a trapezoid?
an angle that is greater than 90 degrees but less than 180 degrees
What is obtuse
A triangle with sides of all different lengths.
What is a scalene triangle?
A closed two-dimensional shape with at least 3 sides.
What is a polygon
This is a quadrilateral with two pairs of opposite sides parallel, all sides are equal, and there are no 90 degree angles.
What is a rhombus
This can be found using the formula (2 x l) + (2 x w).
What is the perimeter?
A real or imaginary line that divides a shape into two congruent parts or mirror images.
What is a line of symmetry?
All angles in every triangle will add up to this number of degrees
What is 180 degrees
This quadrilateral has exactly 4 lines of symmetry.
What is a square?
Area is found by multiplying the length and width of a rectangle. It is measured in this.
What is units squared or squared units?