Question

Congruency of triangles​

Answer 1

Step-by-step explanation:

There are four commonly used congruence tests.

Side Side Side (SSS) The three sides of one triangle are respectively equal to the three sides of the other triangle.

Side Angle Side (SAS) ...

Angle Angle Side (AAS) ...

Right angle Hypotenuse Side (RHS)

Answer 2

Answer:

angle BAD=angle DAC [ADis bisector of angle A]

AD=AD[common ]

angle ADB=angle ADC[AD perpendicular to BC 90°]

therefore triangle ABD is congruent to triangle ACD