• #### Rhombus Properties - Problem 2

##### Math›Geometry›Polygons
How to find the length of diagonals and angles in a rhombus.
• #### Constructing Altitudes - Problem 1

##### Math›Geometry›Constructions
How to construct an altitude in an acute triangle.
• #### Constructing Altitudes - Concept

##### Math›Geometry›Constructions
How to define an altitude and draw them on acute, right, and obtuse triangles.
• #### Kite Properties - Problem 3

##### Math›Geometry›Polygons
How to find the angles in a kite created by the diagonals in terms of a variable.
• #### Rhombus Properties - Concept

##### Math›Geometry›Polygons
How to define a rhombus and compare it to a square and rectangle.
• #### Rhombus Properties - Problem 1

##### Math›Geometry›Polygons
How to find the angles in a rhombus created by drawing one diagonal.
• #### Components of a Force - Problem 1

##### Math›Precalculus›Vectors and Parametric Equations
How to find the horizontal and vertical components of a force.
• #### Constructing the Circumcenter - Problem 1

##### Math›Geometry›Constructions
How to construct the circumscribed circle of a triangle using a compass and straightedge.
• #### Constructing an Angle Bisector - Problem 1

##### Math›Geometry›Constructions
How to construct a 30 degree angle.
• #### Kite Properties - Problem 2

##### Math›Geometry›Polygons
How to find the vertex and non-vertex angles in a kite.
• #### Point of Concurrency - Concept

##### Math›Geometry›Constructions
How to define point of concurrency; how to identify the four main points of concurrency in triangles.
• #### Radii to Tangents - Problem 1

##### Math›Geometry›Circles
How to calculate the central angle formed by radii to tangents that intersect at a point outside the circle.
• #### Constructing an Angle Bisector - Concept

##### Math›Geometry›Constructions
How to define and construct an angle bisector.
• #### Kite Properties - Problem 1

##### Math›Geometry›Polygons
How to find the angles created by the two diagonals in a kite.
• #### Constructing an Angle Bisector - Problem 2

##### Math›Geometry›Constructions
How to construct a 45 degree angle.
• #### Chords and a Circle's Center - Problem 2

##### Math›Geometry›Circles
How to find the center of a circle given only an arc.
• #### The Resultant of Two Forces - Concept

##### Math›Precalculus›Vectors and Parametric Equations
How to find the resultant of two forces when they are parallel, opposite, or perpendicular in direction.
• #### Radii to Tangents - Problem 2

##### Math›Geometry›Circles
How to calculate the measure of a missing angle in a quadrilateral formed by two circles that are tangent but not congruent and their radii drawn to a common line of tangency.
• #### Area of Kites and Rhombuses - Problem 2

##### Math›Geometry›Area
How to find the length of a diagonal in a kite given the area and the length of the other diagonal.
• #### Locus and Definition of a Circle and Sphere - Problem 1

##### Math›Geometry›Circles
How to find the locus of points that are equidistant from the endpoints of a segment.