The information tells us that this triangle is an isosceles triangle meaning two sides and two angles are congruent. Also, this is not a right triangle as the only isosceles right triangle has a ratio of 1:1:2
let the angles be x. 3x + 4x + 4x = 180 (angle sum property of a triangle is 180 degrees.) 12x = 180 x = 180/12 x= 15 the angles are 45, 60 and 60 it is an isosceles triangle.
