base angle 145 videos
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Corresponding Parts of Similar Triangles
Geometry Similarity
How to relate corresponding altitudes, medians and angle bisectors in similar triangles.
similar triangles altitude median angle bisector proportional -
Area of Kites and Rhombuses
Geometry Area
How to derive the area formula of a kite based on the rectangle formula; how to calculate the area of a rectangle using diagonal lengths.
kite area diagonals consecutive sides vertex angle non vertex angle bisect perpendicular rhombus -
ASA and AAS
Geometry Triangles
How to use the ASA and AAS shortcuts to determine the congruence of two triangles.
triangle congruence angle side angle angle angle side -
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 -
Area of Trapezoids
Geometry Area
How to derive the area of a trapezoid formula using the area of a rectangle.
trapezoid parallelogram base height -
Buffered Solutions
Chemistry Acids and Bases
How acids and bases are used in buffered solutions.
buffer buffered solutions -
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 -
Area of Parallelograms
Geometry Area
How to find the area of any parallelogram using rectangle area formulas.
area of rectangles base times height -
Genetic Mutation
Biology Molecular Biology
Random errors in genes and their effects.
genetic mutation chromosomal base substitution -
Salts
Chemistry Acids and Bases
How neutralization reactions produce salts.
salt acids bases neutralization reaction -
pH and pOH
Chemistry Acids and Bases
How pH and pOH represent the concentration.
pH pOH acid base concentration -
Equilibrium Systems
Chemistry Acids and Bases
Understanding equilibrium systems.
acid base conjugate equilibrium system -
Evaluating the Tangent Function
Trigonometry Trigonometric Functions
How to evaluate the tangent of 3*pi/4.
tangent quadrants reference angles
