• Trapezoid Properties - Problem 3

Math›Geometry›Polygons
How to find the length of a side in an isosceles trapezoid given its side lengths in terms of variables and its perimeter.
• Trapezoid Properties - Problem 2

Math›Geometry›Polygons
How to find all the angles in an isosceles trapezoid, given one angle.
• Trapezoid Properties - Problem 1

Math›Geometry›Polygons
How to find the measure of all of the angles in an isosceles trapezoid, given one of the upper angles.
• Number of Diagonals in a Polygon - Problem 1

Math›Geometry›Reasoning, Diagonals, Angles and Parallel Lines
How to determine the number of diagonals in a polygon when you know the number of sides.
• Number of Diagonals in a Polygon - Problem 2

Math›Geometry›Reasoning, Diagonals, Angles and Parallel Lines
How to determine the number of sides in a polygon when you know the number of diagonals.
• Parallelogram Properties - Concept

Math›Geometry›Polygons
How to identify all of the special properties of parallelograms and use them to solve problems.
• Parallelogram Properties - Problem 3

Math›Geometry›Polygons
How to find the lengths of the diagonals in a parallelogram if they are given in terms of a variable.
• Special Isosceles Triangle Properties - Concept

Math›Geometry›Triangles
How to identify a segment from the vertex angle in an isosceles triangle to the opposite side.
• Kite Properties - Concept

Math›Geometry›Polygons
How to identify a kite and its special properties.
• Area of Kites and Rhombuses - Problem 3

Math›Geometry›Area
How to calculate the area of a rhombus given the length of half of the diagonals.
• 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.
• Area of Kites and Rhombuses - Concept

Math›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.
• The Law of Sines - Problem 1

Math›Geometry›Basic Trigonometry
How to find the length of a triangle given two angles and a side, using the law of sines.
• The Law of Sines - Problem 1

Math›Precalculus›Basic Trigonometry
How to find the length of a triangle given two angles and a side, using the law of sines.
• The Law of Sines - Problem 1

Math›Trigonometry›Basic Trigonometry
How to find the length of a triangle given two angles and a side, using the law of sines.
• Similar Triangles in Circles and Right Triangles - Problem 2

Math›Geometry›Similarity
How to find missing side lengths in a right triangle with an altitude drawn from the right angle.
• Rhombus Properties - Concept

Math›Geometry›Polygons
How to define a rhombus and compare it to a square and rectangle.
• Area of Trapezoids - Problem 3

Math›Geometry›Area
How to find the area of a trapezoid where the base lengths, one side, and two angles are given.
• Types of Triangles - Concept

Math›Geometry›Geometry Building Blocks
How to classify a triangle based on its side lengths and angle measures.
• Using Sine to Calculate the Area of a Triangle - Concept

Math›Geometry›Basic Trigonometry
How to calculate the area of any triangle using two sides and an included angle.