Relate the perimeter and area of similar triangles

Use triangle similarity to calculate vertical distance with two horizontal measurements

Use properties of congruent triangles to derive parallelogram properties

Use properties of congruent triangles to derive sufficient conditions for a parallelogram to be a rectangle

Use properties of congruent triangles and rectangles to prove shapes are parallelograms

Use properties of congruent triangles to derive trapezoid properties

Derive properties of rhombuses with congruent triangles

Identify similar triangles formed by transversal intersections with parallel lines

Explore when and how two sides and an angle define a triangle uniquely

Identify similar triangles and solve problems

Prove triangles congruent using two angles and one side and interpret results

Use similarity of right triangles to find side lengths