Respuesta :

delgadoestrella022

Answer:

Angle ADB = 60 degrees

Step-by-step explanation:

This is a 60 60 60 triangle, which means all of its angles equal 60 degrees. Therefore angle ADB is 60 degrees.

briannajohnson6897
All triangle add up to 180, you got 2 angles which are 60. So 60+60+x=180 simplify into 120+x=180 and 180-120 is 60, therefore the missing angle is 60 degrees