PRESENTATION OUTLINE
A complimentary angel is two angels that add up to 90
Pikachu is making an obtuse angel with its back and tail, an obtuse angel is an angle that measures more than 90 degrees
Base angels of an isosceles triangle: The side opposite the vertex angel
A supplementary angel is two angels that add up to equal 180
Circle: Something shaped like a plane curve
Collinear points: Points that lie on the same line
Convex polygon: A polygon with one or more interior angles greater than 180
Cube: A regular shape with 6 congruent faces
Hypotenuse of a right triangle: The side of the right triangle that is opposite the right angel
A parallelogram has both pairs of opposite side parallel
Concurrent lines: 3 or more lines on a plane that are concurrent intersect at a single point
Horizontal lines: Lines that go from left to right across the page
Parallel lines cut by a transversal: Two parallel lines are cut by another line called a transversal
Perpendicular lines: Two lines that intersect and make a right angle
Skew lines: two lines that do not intersect and are not parallel
Perpendicular planes: Two planes that meet and make a right angle
Parallel planes: Planes that never intersect or touch
Ray: a part of a line that starts at a point and goes on forever
Rectangle: any quadrilateral with 4 right angles
Rhombus: a quadrilateral whose four sides are the same length
Scalene triangle: a triangle with 3 unequal sides
Square: A plane figure with four equal sides
Trapezoid: A quadrilateral with two parallel sides
Congruent triangle: Corresponding sides and angles are equal
Similar triangles: Same shape but different sizes
Exterior angle of a triangle: is equal to the sum of the opposite interior angles.
Vertical angles: each of the pairs of opposite angles made by two intersecting lines
Concentric circles: two or more circles which have the same center point.
Polyhedron: a solid with flat faces.
Right cone: a cone whose surface is generated by lines joining a fixed point to the points of a circle, the fixed point lying on a perpendicular through the center of the circle.
Right cylinder: a cylinder with the bases circular and with the axis joining the two centers of the bases.
Acute angle: an angle that measures less than 90
Sphere: globe, an object similar in shape to a ball
Concave polygon: a polygon with one or more interior angles greater than 180
