This video is from the Khan Academy subject of Math on the topic of Geometry and it covers Algebraic midpoint of a segment exercise.
Students learn about linear programming (also called linear optimization) to solve engineering design problems. As they work through a word problem as a class, they learn about the ideas of constraints, feasibility and optimization related to graphing linear equalities. Then they apply this information to solve two practice engineering design problems related to optimizing materials and cost by graphing inequalities, determining coordinates and equations from their graphs, and solving their equations. It is suggested that students conduct the associated activity, Optimizing Pencils in a Tray, before this lesson, although either order is acceptable.
Using the angle bisector theorem to solve for sides of a triangle
What the angle bisector theorem is and its proof
Using what we know to solve for angles in the Angle Game.
Definition of an angle. How to denote an angle using points on the angle (including the vertex)
Parallel lines, transversal lines, corresponding angles
Angles of parallel lines
Angles of parallel lines examples
Possible angles for an isosceles triangle
Visually proving the Pythagorean Theorem
Proof of the formula relating the area of a triangle to its circumradius
Area of Diagonal Generated Triangles of Rectangle are Equal
Area of a Circle
Showing that the area of a parallelogram is base times height
Using what we know about triangles to find the area of a regular hexagon
This video is from the Khan Academy subject of Math on the topic of Geometry and it covers Area of a kite.
Finding the formula for the area of an equilateral triangle with side s
This video is from the Khan Academy subject of Math on the topic of Geometry and it covers Area of a sector given a central angle.
This video is from the Khan Academy subject of Math on the topic of Geometry and it covers Area of a trapezoid.