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

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

Step-by-step 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

180 square centimeters

step-by-step explanation:

2 and 1.

step-by-step explanation:

plug in each answer. 0 doesn't work, 1 does. so does 2. 4 doesn't:

0 = 1 is not true.

2 = 2 is true.

4 = 4 is true.

8 = 16 is not true.

hope this !