right triangles 106 videos

We the People Kind Of
AP US History AP US History Videos
Explore the reasons behind the Constitution and the framework of the U.S. government.
Constitution Bill of Rights Founding Fathers new nation 
Volume of Prisms
Geometry Volume
How to find the volume of any prism, right or oblique using a general formula.
volume base area height trapezoid regular polygon oblique prism 
Finding the Slope of a Line from a Graph
Algebra Linear Equations and Their Graphs
How to find the slope of a line if given a graph.
slope change ratio fraction slope triangle 
Two Column Proofs
Geometry Triangles
How to organize a two column proof.
statement reason cpctc prove show congruent triangles 
Rotational Symmetry
Geometry Transformations
How to define rotational symmetry and identify the degree of rotational symmetry of common regular polygons.
symmetry rotation point symmetry image equilateral triangle 
Finding the Slope of a Line from a Graph
Algebra 2 Graphs of Linear Equations
How to find the slope of a line if given a graph.
slope change ratio fraction slope triangle 
Trapezoid Midsegment Properties
Geometry Polygons
How to define the midsegment of a trapezoid, calculate its length, and relate it to a triangle midsegment.
midsegment trapezoid average bases midpoint 
Jim, Jackie, Martin
AP US History AP US History Videos
Identify the key events and people that shaped AfricanAmerican history.
Reconstruction civil rights Brown vs. Board of Education MLK affirmative action 
Parallel and Perpendicular Lines
Algebra Linear Equations and Their Graphs
How to determine whether lines are parallel, perpendicular, or neither.
parallel perpendicular point slope form intersect right angle 
Radii to Tangents
Geometry Circles
How to define a tangent line; how to determine the angle a radius to a tangent forms.
tangent radius right angle point outside the circle perpendicular 
Vertex and Diagonals
Geometry Geometry Building Blocks
How the vocabulary word vertex applies to different objects in Geometry.
vertex isosceles triangle polygon diagonal cone pyramid prism 
Flowchart Proofs
Geometry Triangles
How to outline a flowchart proof.
flowchart proof given cpctc isosceles triangle reflexive property 
Reflectional Symmetry
Geometry Transformations
How to identify and describe reflectional symmetry.
symmetry figure maps isometry mirror image square equilateral triangle 
Area of Regular Polygons
Geometry Area
How to derive the formula to calculate the area of a regular polygon.
area apothem side hexagon isosceles triangle perimeter equilateral equiangular 
Area of a Segment
Geometry Area
How to derive the area of a segment formula.
segment sector triangle area radius central angle shaded area 
Angles in Semicircles and Chords to Tangents
Geometry Circles
How to prove that an angle inscribed in a semicircle is a right angle; how to solve for arcs and angles formed by a chord drawn to a point of tangency.
inscribed angle semicircle tangent chord intercepted arc 
Point of Concurrency
Geometry Constructions
How to define point of concurrency; how to identify the four main points of concurrency in triangles.
intersection incenter angle bisectors circumcenter perpendicular bisector orthocenter altitude centroid median 
Rollercoaster of Reform
AP US History AP US History Videos
Review key 20thCentury Supreme Court decisions and progressive presidents.
Supreme Court Square Deal FDR New Deal Johnson Great Society Civil Rights Acts 
Approximating Area Using Rectangles
Calculus The Definite Integral
How to approximate the area under a curve using rectangles.
approximating area under a curve left hand sums right hand sums limits 
Radian Measure of Angles
Trigonometry Trigonometric Functions
How to measure angles using degrees or radians.
angle degree measure acute angle right angle obtuse angle radian measure