Question

‼️‼️ASAP need help ‼️

Answer 1

For a shape to be a square all the angles need to be 90 degrees.

Angle B = 3x+60 = 90

3x +60 = 90

Subtract 60 from each side:

3x = 30

Divide both sides by 3:
x = 30 /3
X = 10

Answer 2

I really don't understand this question