Quadrilaterals
This quadrilateral has 2 pairs of opposite sides that are parallel.
What is a parallelogram?
Interior angles on a triangle add to this.
What is 180°?
These angles are more than 90° but less than 180°.
What are obtuse angles?
These lines stay equidistant from each other.
What are parallel lines?
The rule of alternate angles.
What is alternate angles are equal?
This quadrilateral has 2 pairs of opposite sides that are congruent and 4 right angles.
What is a rectangle?
These triangles have no equal sides and no equal angles.
What are scalene triangles?
Interior angles of a quadrilateral add to this.
What is 360°?
This is how parallel lines are shown on a diagram.
What is matching arrowheads?
The name of the angles that form the "F" shape.
What is corresponding angles?
This quadrilateral has 4 congruent sides and the opposite sides are parallel, with no right angles.
What is rhombus?
These triangles have 3 equal sides and 3 equal angles.
What are equilateral triangles?
These angles add to 90°.
What are complementary angles?
This is what a line that crosses parallel lines is called.
What is a transversal?
The rule for co-interior angles.
What is Co-interior angles add to 180°?
This quadrilateral has one set of parallel lines.
What is a trapezium?
These triangles have 2 equal sides and 2 equal angles.
What are isosceles triangles?
Angles around a point add to this.
What is 360°?
Alternate angles form this shape.
What is the "Z" or "N" shape?
What is the rule for corresponding angles?
What is corresponding angles are equal?
This quadrilateral has 2 sets of parallel sides, and opposite sides are equal in length and no right angles.
What is a parallelogram?
The rule to find the exterior angle.
What is add the 2 opposite interior angles together to find the exterior angle.
These angles form and "X" shape and are equal to each other.
What are vertically opposite angles?
The shape that co-interior angles make.
What is the "U" or "C" shape?
Problem solving:
This is the exterior angle of an equilateral triangle.
What is 120°?