Respuesta :
Answer:
AC=6. I think, because ABC - isosceles, so two sides must have same lengths.
Answer:
1. TRIANGLE ABC IS SCALENE TRIANGLE.
2.TRIANGLE ABC IS RIGHT ANGLED TRIANGLE.
3. AC = 6
Step-by-step explanation:
Triangle ABC.
m<BAC = 50°
If m<ACB = 30°
TRIANGLE ABC IS SCALENE TRIANGLE.
proof: 50+30+x= 180
X= 180-80
X= 100
In SCALENE, all sides are unequal.
Triangle ABC.
m<BAC = 50°
If m<ABC = 40°
TRIANGLE ABC IS RIGHT ANGLED TRIANGLE
Proof: 50+40+x= 180
X = 180-90
X = 90
Triangle having any angle equal 90 is a right angle triangle.
If triangle ABC is isosceles, and AB = 6 and BC = 4, then AC = 6.
In isosceles triangle, two adjecent sides in contact with the angle that is not equal to the others are equal.