first such theorem is the side-angle-side (SAS) theorem: If two sides and the included angle of one triangle are equal to two sides and the included angle of another triangle, the triangles are congruent.

What is SAS SSS ASA AAS?

SSS, or Side Side Side. SAS, or Side Angle Side. ASA, or Angle Side Side. AAS, or Angle Angle Side. HL, or Hypotenuse Leg, for right triangles only.

Does SAS work in math?

SAS theorem states that two triangles are equal if two sides and the angle between those two sides are equal. While the geometry formula for the area of a triangle is often used, the SAS theorem is used with trigonometry to provide an alternate method to calculate the area of a triangle.