Question

If m∠A=(3x)∘and m∠D=(x+60)∘,what value of x
makes ABCD a parallelogram?

Enter the correct value of x.

Answer 1

Answer:

30

Step-by-step explanation:

Adjacent angles of a parallelogram add up to 180 degrees, meaning that (3x)+(x+60)=180 degrees. You can use this to set up the following equation:

3x+x+60=180

4x=120

x=30 degrees. Hope this helps!