Question

the diagram shows a triangle. what is the value of c? c = □°

Explanation:

Step1: Recall angle - sum property

The sum of interior angles of a triangle is 180°.

Step2: Set up the equation

Let the three angles of the triangle be 74°, 75°, and c. So, 74 + 75 + c=180.

Step3: Simplify the left - hand side

149 + c = 180.

Step4: Solve for c

c=180 - 149.
c = 31.

Answer:

31