A New Angle on an Old Pyramid
Definitions and Examples.
Similar figures - Figures that have the same shape and the corresponding sides are proportional. Examples.
Angle-Angle-Angle property - If the angles of one triangle are congruent to the corresponding angles of another triangle, then the triangles are similar. Examples.
Triangle inequality - Theorem states that the sum of the lengths of any two sides of a triangle is greater than the length of the third side. Examples.
Pythagorean theorem - Theorem that states that, in a right triangle, the square of the length of the longest side (the hypotenuse) equals the sum the squares of the lengths of the other sides (the legs).
Identifying the sides of a right triangle.
Examples.
Pythagorean theorem word problems.
Pythagorean puzzles.
Trigonometry - The study of the relationships between the angles and the sides of a right triangle. Trigonometry involves the ratios of the sides of right triangles. The three ratios are called tangent, sine and cosine.
Trigonometric functions.
Tangent.
Sine.
Cosine.
Review of sine, cosine, and tangent.