How to write ratios to compare two quantities.
How to define the sine ratio and identify the sine of an angle in a right triangle.
How to define the cosine ratio and identify the cosine of an angle in a right triangle.
How to define the tangent ratio and identify the tangent of an angle in a right triangle.
How to identify if two solids are similar and how to convert 1D ratios to surface area and volume ratios.
How to convert between length and area ratios of similar polygons
How to derive the area of a triangle formula using the rectangle area formula.
How to classify a triangle based on its side lengths and angle measures.
Definitions and notation of ratios, and when we use them
How to apply the triangle angle sum theorem.
How to determine if two triangles in a circle are similar and how to prove that three similar triangles exist in a right triangle with an altitude.
How to use Pascal's triangle.
How to calculate the area of any triangle using two sides and an included angle.