際際滷

際際滷Share a Scribd company logo

4.6 Special Triangles

Download as PPTX, PDF
ejfischer
ejfischer

The document discusses theorems related to triangles, including the base angles theorem, converse of the base angles theorem, properties of equilateral and equiangular triangles, and congruence of right triangles with congruent hypotenuses and legs. It also includes an example problem asking whether two lines are parallel based on given angle measures.

1 of 6
Download to read offline
Section 4.6
Base Angles Theorem: If two sides of a triangle are congruent, then their opposite angles are also congruent. Converse of the Base Angles Theorem: If two angles of a triangle are congruent, then their opposite sides are also congruent
Equilateral triangles are also equiangular Equiangular triangles are also equilateral
If the hypotenuse and one leg of a right triangle are congruent to those of another right triangle, then the two triangles are congruent
Find x 81 9x + 18
A C x 82属 y x D B Are AB and CD parallel?

More Related Content

4.6 Special Triangles

  • 2. Base Angles Theorem: If two sides of a triangle are congruent, then their opposite angles are also congruent. Converse of the Base Angles Theorem: If two angles of a triangle are congruent, then their opposite sides are also congruent
  • 3. Equilateral triangles are also equiangular Equiangular triangles are also equilateral
  • 4. If the hypotenuse and one leg of a right triangle are congruent to those of another right triangle, then the two triangles are congruent
  • 5. Find x 81 9x + 18
  • 6. A C x 82属 y x D B Are AB and CD parallel?