xNarrowSoulx
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xNarrowSoulx
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3 weeks ago
Chad Smith - Charlie (RHCP)
Sabian endorser Chad Smith playing to a track during a recent clinic in Northampton. The track is 'Charlie'. For full story check out http://www.sa...
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★SWTOR +10 All Stats Rare Datacron Locations - Tutorial - Tips & Tricks 11
SWTOR - Star Wars the Old Republic - Rare Datacron +10 all stats Location - Tutorial How to get +10 all stats Datacron - MGGS - This is done by a l...
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Challenging Triangle Angle Problem
Interesting problem finding the sums of particular exterior angles of an irregular pentagon
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xNarrowSoulx
added to a playlist
3 weeks ago
Area of a Regular Hexagon
Using what we know about triangles to find the area of a regular hexagon
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Problem involving angle derived from square and circle
Challenging problem to find an angle
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Area of a circle
Area of a circle and how it relates to radius and diameter
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Heron's Formula
Using Heron's Formula to determine the area of a triangle while only knowing the lengths of the sides
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Triangle Medians and Centroids
Seeing that the centroid is 2/3 of the way along every median
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Rhombus Diagonals
Proof that the diagonals of a rhombus are perpendicular bisectors of each other
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Perpendicular Radius Bisects Chord
Simple proof using RSH postulate to show that a radius perpendicular to a chord bisects it
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Pythagorean Theorem II
More Pythagorean Theorem examples. Introduction to 45-45-90 triangles.
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xNarrowSoulx
added to a playlist
3 weeks ago
Right Triangles Inscribed in Circles (Proof)
Proof showing that a triangle inscribed in a circle having a diameter as one side is a right triangle
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Inscribed and Central Angles
Showing that an inscribed angle is half of a central angle that subtends the same arc
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Proof - Rhombus Diagonals are Perpendicular Bisectors
Proving that the diagonals of a rhombus are perpendicular
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Circles: Radius, Diameter and Circumference
Understanding the relationship between the radius diameter and circumference of a circle.
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Incenter and incircles of a triangle
Using angle bisectors to find the incenter and incircle of a triangle
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Common Orthocenter and Centroid
Showing that a triangle with the same point as the orthocenter and centroid is equilateral
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45-45-90 Triangles
Introduction to 45-45-90 Triangles
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30-60-90 Triangles II
More examples using 30-60-90 triangles.
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xNarrowSoulx
added to a playlist
3 weeks ago
Median Centroid Right Triangle Example
Example involving properties of medians
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Area and Perimeter
Area of rectangles and triangles. Perimeter of rectangles.
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Area of Inscribed Equilateral Triangle (some basic trig used)
Problem that requires us to figure out the area of an equilateral triangle inscribed in a circle (A little trigonometry used)
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Similar triangles (part 2)
More on similar triangles
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Angles formed between transversals and parallel lines
Angles of parallel lines
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Angles of parallel lines 2
Angles of parallel lines examples
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Review of Triangle Properties
Comparing perpendicular bisectors to angle bisectors to medians to altitudes
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Similar triangles
Introduction to similar triangles
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xNarrowSoulx
added to a playlist
3 weeks ago
Exploring Medial Triangles
What a medial triangle is and its properties
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Angle Bisector Theorem Examples
Using the angle bisector theorem to solve for sides of a triangle
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Proof - Diagonals of a Parallelogram Bisect Each Other
Proving that a quadrilateral is a parallelogram if and only if its diagonals bisect each other
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Part 1 of Proof of Heron's Formula
Part 1 of the proof of Heron's Formula
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Quadrilateral Overview
Basics of quadrilaterals including concave, convex ones. Parallelograms, rectangles, rhombi and squares
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Intro to 30-60-90 Triangles
A few more 45-45-90 examples and an introduction to 30-60-90 triangles.
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Solid Geometry Volume
Volume of triangular prisms and cubes
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2003 AIME II Problem 7
Area of rhombus from circumradii of triangles
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xNarrowSoulx
added to a playlist
3 weeks ago
Triangle Medians and Centroids (2D Proof)
Showing that the centroid is 2/3 of the way along a median
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The Angle Game
Using what we know to solve for angles in the Angle Game.
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The Pythagorean Theorem
Introduction to the Pythagorean Theorem
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Proving that the Centroid is 2-3rds along the Median
Showing that the centroid divides each median into segments with a 2:1 ratio (or that the centroid is 2/3 along the median)
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Proof - Opposite Angles of Parallelogram Congruent
Showing that opposite angles of a parallelogram are congruent
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Point Line Distance and Angle Bisectors
Thinking about the distance between a point and a line. Proof that a point on an angle bisector is equidistant to the sides of the angle and a poi...
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Part 2 of the Proof of Heron's Formula
Showing that the expression in part 1 is identical to Heron's Formula
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xNarrowSoulx
added to a playlist
3 weeks ago
Inradius Perimeter and Area
Showing that area is equal to inradius times semiperimeter
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Euler's Line Proof
Proving the somewhat mystical result that the circumcenter, centroid and orthocenter
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Proof - Rhombus Area Half Product of Diagonal Length
Showing that we can find the area of a rhombus by taking half the product of the lengths of the diagonals
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Cylinder Volume and Surface Area
Finding the volume and surface area of a cylinder
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Angle Bisector Theorem Proof
What the angle bisector theorem is and its proof
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Circumcenter of a Right Triangle
Showing that the midpoint of the hypotenuse is the circumcenter
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Proof - Triangle Altitudes are Concurrent (Orthocenter)
Showing that any triangle can be the medial triangle for some larger triangle. Using this to show that the altitudes of a triangle are concurrent ...
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