straight angle an angle that measures 180 degrees A straight angle is an angle that measures exactly 180 degrees. It looks like a straight line and is...
isosceles triangle A triangle that has 2 equal sides. An isosceles triangle is a type of triangle with two sides that are equal in length. This means...
scalene triangle A triangle with no equal sides A scalene triangle is a type of triangle in which all three sides have different lengths. This is in...
equilateral triangle a triangle with 3 congruent sides An equilateral triangle is a triangle in which all three sides are of equal length and all three angles...
quadrilateral a polygon with four sides A quadrilateral is a four-sided polygon or shape formed by four straight lines. Quadrilaterals have four vertices (corners) and four angles....
rhombus a parallelogram with 4 congruent sides A rhombus is a four-sided polygon (also called a quadrilateral) in which all sides are equal in length. Additionally, the...
trapazoid a quadrilateral with one pair of parallel sides A trapezoid is a quadrilateral with only one pair of parallel sides. The parallel sides are called the...