Question

Find m /_B.A) 60°OB) 75°OC) 90°OD) 100°​

Answer 1

When you don’t know the degree of a shape just use this form

180(n-2). Where n is the number sides of the shape.

There are 4 sides

180(4-2) = 180(2) = 360

So this shape is 360 degrees

120 + 120 + 60 +x = 360

300 + x = 360
X= 60


But as you can see that you don’t need this form for this question the alternate interior show you that the missing angles is 60