Question

question 5 of 10 what is the value of y? a. 60° b. 120° c. 30° d. 40°

Explanation:

Step1: Recall angle - sum property of a triangle

The sum of interior angles of a triangle is 180°.
So, \(y + y+60^{\circ}=180^{\circ}\).

Step2: Combine like - terms

\(2y+60^{\circ}=180^{\circ}\).

Step3: Isolate the variable term

Subtract 60° from both sides: \(2y=180^{\circ}- 60^{\circ}\), so \(2y = 120^{\circ}\).

Step4: Solve for y

Divide both sides by 2: \(y=\frac{120^{\circ}}{2}=60^{\circ}\).

Answer:

A. 60°