Question

find the value of x. 140° (5x)°

Explanation:

Step1: Recall angle - sum property

The sum of angles around a point is 360°. Here, we have a right - angle (90°), a 140° angle, and an angle of measure (5x)°.

Step2: Set up the equation

140 + 90+5x=360

Step3: Simplify the left - hand side

230 + 5x=360

Step4: Isolate the variable term

5x=360 - 230
5x = 130

Step5: Solve for x

x=\frac{130}{5}=26

Answer:

26