Question

Find the value of x.Then find the angle measures of the polygon

Answer 1

x = 25, The angles of the triangle are 60*, 45*, and 75*.

Explanation:

The sum of the angle measure is 180 so we can form this equation:

60 + (x + 20) + 3x = 180

Now isolate the variable to find x.

(x + 20) + 3x = 120

4x + 20 = 120

4x = 100

x = 25

Now solve for the angles of the triangle.

3(25) = 75

(25 + 20) = 45