Respuesta :

No - if an angle is obtuse, then it is more than 90 degrees. The internal angle value of a triangle is exactly 180 degrees, and you can't have one value greater than 90, and one exactly 90, AND a third angle because it would add up to more than 180 degrees. 
No, it cannot, the sum of a triangle angles has to be 180, have one degree as 90 and another as over 90, leaves no room for the thirs angle to connect to the other 2