Angles
This angle measures less than 90 degrees.
What is an acute angle.
A triangle with all sides equal.
What is an equilateral triangle.
A slide that moves a figure without turning it.
What is a translation.
A quadrilateral with four right angles.
What is a rectangle.
Lines that never intersect.
What are parallel lines.
Angles that add up to 180 degrees.
What are supplementary angles.
A triangle with no equal sides.
What is a scalene triangle.
A flip over a line.
What is a reflection.
A quadrilateral with four equal sides and four right angles.
What is a square.
Lines that intersect at a 90° angle.
What are perpendicular lines.
Angles on opposite sides of a transversal and inside the two lines.
What are alternate interior angles.
Triangles with all corresponding sides and angles equal.
What are congruent triangles.
A turn around a fixed point.
What is a rotation.
A quadrilateral with four equal sides but not necessarily right angles.
What is a rhombus.
A segment from the center of a circle to the edge.
What is a radius.
A ray that divides an angle into two equal angles.
What is an angle bisector.
A perpendicular segment from a vertex to the opposite side.
What is an altitude.
A transformation that changes the size of a figure.
What is a dilation.
A quadrilateral with at least one pair of parallel sides.
What is a trapezoid.
A segment passing through the center of a circle connecting two points on the circle.
What is a diameter.
An angle whose vertex lies on a circle.
What is an inscribed angle.
This theorem states that a2+b2=c2.
What is the Pythagorean Theorem.
A general term for any change in size, position, or orientation.
What is a transformation.
A 3D shape with two circular bases and a curved surface.
What is a cylinder.
A line that intersects two or more lines at different points.
What is a transversal.