Answer: ∠y=60° Step-by-step explanation: Question says to find the measure of the angle Y. We have been given a picture of triangle XYZ. All angles are marked with same sign so that indicates that all three angles are equal. ∠x = ∠y = ∠z...(i) We know that sum of all three angles of the triangle is always 180°. So we can write: ∠x+∠y+∠z=180° ∠y+∠y+∠y=180° {using equation (i) } 3∠y=180° divide both side by 3 ∠y=60° Hence final answer is the measure of angle y is 60 degree.
